string(9) "MIL259974" array(12) { ["id"]=> string(5) "13191" ["sku"]=> string(9) "MIL259974" ["manufacturer_sku"]=> string(6) "259974" ["post_id"]=> string(7) "1774815" ["integrity_hash"]=> string(0) "" ["tax_hash"]=> string(32) "c2f466ee8e584cfc44c71868a4147729" ["product_data"]=> string(1078) "{"post_title":"SWITCH,PRESSURE OIL 7PSI NC CONT SCREW TERM","post_content":"","post_excerpt":"","post_status":"publish","post_type":"product","meta_input":{"um":"EA","_sku":"MIL259974","_price":"111.57","_regular_price":"170.64","_sale_price":"111.57","unit-cost":170.6399999999999863575794734060764312744140625,"currency":"US","cost":"65.63","promo":"111.57","list_price":"170.64","_width":"0","_length":"0","_weight":"1","_height":"0","supplier_id":"10101","whIntegrityHash":"1a4a8f510c020cd6cee7af8a197c9e0b_21","_stock":0,"_manage_stock":"yes","_stock_status":"onbackorder","_backorders":"yes","qty_pack":"1","map_product":"","manufacturer_sku":"259974","sub_brand":"","spec_sheets":"","packaging_desc":"1 PER EA","elastic_helper_sku":"MIL259974 MIL259974 MIL259974","elastic_helper_manufacturer_sku":"259974 259974 259974","elastic_helper_manufacturer_sku_pattern_1":"259974","elastic_helper_sku_pattern_1":"MIL259974","gtin":"715959657808","sub_status":""},"tax_input":{"endorsed":[],"product_cat":[2057,2056]},"attr":[{"name":"packaging-description","value":"1 PER EA"}]}" ["external_data"]=> string(10689) "{"suggested_alternative_name":"Miller 7 PSI Oil Pressure Safety Switch NC Screw Terminals","meta_description":"Ensure engine safety with the Miller 259974 Oil Pressure Switch. Rated for 7 PSI with Normally Closed contacts and screw terminals. Genuine OEM replacement part.","focus_keyword":"Miller 259974 oil pressure switch","key_specs":["Pressure Rating: 7 PSI","Contact Configuration: Normally Closed (NC)","Connection Style: Screw Terminals","Application: Engine Oil Monitoring"],"suggested_keywords":"Miller 259974 switch, oil pressure switch 7 psi, welder engine protection, Miller replacement parts, NC pressure switch, screw terminal switch, industrial pressure sensor, engine safety switch, Miller welder repair, low oil shutdown switch, engine driven welder parts, Miller electric components","possible_accessories":["Ring Terminals","Wire Strippers","Thread Sealant","Engine Oil","Oil Filter"],"related_products":[],"manufacturer_url":null,"brand_name":"Miller","manufacture":"Miller","suggested_categories":["welding-machines-fume-extractors > machine-repair-parts"],"series_name":"Miller Replacement Parts","advantages":"This OEM switch provides reliable engine protection by accurately monitoring oil pressure, featuring durable construction and secure screw terminals to withstand the high vibration of welding environments.","collection":"Engine Protection Parts","synonyms":"oil sender, low oil switch, oil pressure sensor, 7psi switch, engine safety cutoff","accessory_for":[],"product_type":"Machine Repair Part","product_description":"

Reliable Engine Protection for Industrial Welding Equipment<\/h2>\n

The Miller 259974 Switch, Pressure Oil 7Psi Nc Cont Screw Term<\/strong> is a critical component designed to safeguard the internal combustion engines powering Miller's industrial welding generators. In the demanding environment of heavy fabrication and field welding, engine reliability is paramount. This precision-engineered pressure switch serves as a vital sentinel, continuously monitoring the engine's oil pressure to prevent catastrophic mechanical failure. Engineered to specific OEM tolerances, this switch ensures that your equipment operates within safe parameters, triggering protective measures if oil pressure falls below the critical threshold.<\/p>\n\n

Technically, the device is calibrated to actuate at 7 PSI<\/strong>. It features a Normally Closed (NC)<\/strong> contact configuration, meaning the circuit remains closed when the switch is at rest (zero pressure). This logic is commonly employed in safety circuits where the switch grounds a warning light or an ignition shutdown relay when pressure is absent or insufficient. As the engine builds oil pressure upon startup, the diaphragm within the switch expands, opening the contacts and extinguishing the warning light or enabling the run circuit, depending on the specific wiring logic of the machine. This fail-safe design ensures that a broken wire or loose connection is often detected immediately, rather than remaining hidden until a failure occurs.<\/p>\n\n

The construction of the Miller 259974 emphasizes durability and connection integrity. It utilizes screw terminals<\/strong> for electrical connections, a superior choice for high-vibration environments typical of engine-driven welders. Unlike blade connectors which can vibrate loose over time, screw terminals allow for a positive, torqued connection that maintains continuity even under rough operating conditions. The switch body is constructed to resist the heat, oil, and grime found in engine compartments, ensuring a long service life. Using genuine Miller replacement parts like the 259974 guarantees compatibility with the existing wiring harness and mounting ports, eliminating the guesswork and potential risks associated with generic, universal switches that may not match the specific pressure curve or thread pitch required by Miller equipment.<\/p>\n\n

For maintenance professionals and fleet managers, stocking critical spares like the 259974 is essential for minimizing downtime. A faulty oil pressure switch can lead to false alarms that stop production or, worse, fail to warn of actual low pressure conditions. By replacing aging switches with this authentic Miller component, you ensure the continued reliability and longevity of your valuable welding assets.<\/p>","product_description_text":"Reliable Engine Protection for Industrial Welding Equipment\nThe Miller 259974 Switch, Pressure Oil 7Psi Nc Cont Screw Term is a critical component designed to safeguard the internal combustion engines powering Miller's industrial welding generators. In the demanding environment of heavy fabrication and field welding, engine reliability is paramount. This precision-engineered pressure switch serves as a vital sentinel, continuously monitoring the engine's oil pressure to prevent catastrophic mechanical failure. Engineered to specific OEM tolerances, this switch ensures that your equipment operates within safe parameters, triggering protective measures if oil pressure falls below the critical threshold.\n\nTechnically, the device is calibrated to actuate at 7 PSI. It features a Normally Closed (NC) contact configuration, meaning the circuit remains closed when the switch is at rest (zero pressure). This logic is commonly employed in safety circuits where the switch grounds a warning light or an ignition shutdown relay when pressure is absent or insufficient. As the engine builds oil pressure upon startup, the diaphragm within the switch expands, opening the contacts and extinguishing the warning light or enabling the run circuit, depending on the specific wiring logic of the machine. This fail-safe design ensures that a broken wire or loose connection is often detected immediately, rather than remaining hidden until a failure occurs.\n\nThe construction of the Miller 259974 emphasizes durability and connection integrity. It utilizes screw terminals for electrical connections, a superior choice for high-vibration environments typical of engine-driven welders. Unlike blade connectors which can vibrate loose over time, screw terminals allow for a positive, torqued connection that maintains continuity even under rough operating conditions. The switch body is constructed to resist the heat, oil, and grime found in engine compartments, ensuring a long service life. Using genuine Miller replacement parts like the 259974 guarantees compatibility with the existing wiring harness and mounting ports, eliminating the guesswork and potential risks associated with generic, universal switches that may not match the specific pressure curve or thread pitch required by Miller equipment.\n\nFor maintenance professionals and fleet managers, stocking critical spares like the 259974 is essential for minimizing downtime. A faulty oil pressure switch can lead to false alarms that stop production or, worse, fail to warn of actual low pressure conditions. By replacing aging switches with this authentic Miller component, you ensure the continued reliability and longevity of your valuable welding assets.","suggested_attributes":[{"name":"Brand","values":["Miller"]},{"name":"Packaging Description","values":["1 Per Ea"]}],"extra_attributes":[{"name":"Product Type","values":["Oil Pressure Switch"]},{"name":"Pressure Rating","values":["7 PSI"]},{"name":"Contact Configuration","values":["Normally Closed (NC)"]},{"name":"Connection Type","values":["Screw Terminals"]},{"name":"Application","values":["Engine Protection"]}],"suggested_pretty_url":"miller-259974-oil-pressure-switch-7psi-nc","predecessor":"","releaseYear":2010,"releaseYearGuess":2010,"successor":"","features":["Calibrated 7 PSI actuation point for precise low-pressure detection","Normally Closed (NC) contact configuration at rest (0 PSI)","Robust screw terminals ensure vibration-resistant electrical connections","Designed specifically for Miller engine-driven welding equipment","Critical safety component for preventing engine seizure due to oil starvation","Direct OEM replacement ensures proper fitment and reliable operation","Compact housing design fits into tight engine compartments","Corrosion-resistant materials suitable for harsh industrial environments"],"applications":"

• Engine-driven welding generators (e.g., Miller Bobcat, Trailblazer, Big Blue series)<\/li>
• Industrial power units requiring low oil pressure shutdown<\/li>
• Mobile fabrication equipment engine protection<\/li>
• Replacement of faulty or leaking oil pressure sensors<\/li>
• Preventative maintenance for high-hour welding machines<\/li><\/ul>","includes":"
  • 1 x Miller 259974 Oil Pressure Switch<\/li><\/ul>","faqs":[{"question":"What is the pressure rating for this switch?","answer":"The Miller 259974 is rated to actuate at 7 PSI.","type":"JOSEF GAS"},{"question":"What does 'NC' mean in the product description?","answer":"NC stands for 'Normally Closed'. This means the electrical contacts are closed when the switch is at rest (0 PSI) and open when the pressure rises above the set point.","type":"JOSEF GAS"},{"question":"How do I connect the wires to this switch?","answer":"This switch features screw terminals. You will need to strip the wire ends or use ring\/fork terminals and tighten them down with a screwdriver for a secure connection.","type":"WELDERS"},{"question":"Will this fit my specific Miller welder?","answer":"This is a genuine Miller part used on various engine-driven models. Please check your machine's parts manual or verify your serial number to confirm compatibility with part number 259974.","type":"WELDERS"},{"question":"What are the symptoms of a bad oil pressure switch?","answer":"Symptoms can include the low oil pressure light staying on despite good oil levels, the engine shutting down immediately after starting, or oil leaking from the switch body.","type":"WELDERS"},{"question":"Can I use a generic automotive oil switch instead?","answer":"It is not recommended. Generic switches may have different pressure ratings or thread types. Using the OEM Miller 259974 ensures the correct 7 PSI activation point for your engine's safety.","type":"JOSEF GAS"},{"question":"Is this switch for gas or diesel engines?","answer":"It can be used on both, depending on the specific Miller machine model. The switch measures oil pressure regardless of fuel type.","type":"WELDERS"},{"question":"Does this switch control the oil pressure gauge?","answer":"Typically, this is a safety switch for warning lights or automatic shutdown (dummy light), not a variable sender for a gauge needle. Check your manual to be sure.","type":"JOSEF GAS"}]}" ["compiled_data"]=> string(583) "{"categories":[2036,2040],"attributes":[{"name":"Brand","slug":"pa_brand","value":"Miller"},{"name":"Packaging Description","slug":"pa_packaging-description","value":"1 Per Ea"},{"name":"Product Type","slug":"pa_product-type","value":"Oil Pressure Switch"},{"name":"Pressure Rating","slug":"pa_pressure-rating","value":"7 PSI"},{"name":"Contact Configuration","slug":"pa_contact-configuration","value":"Normally Closed (NC)"},{"name":"Connection Type","slug":"pa_connection-type","value":"Screw Terminals"},{"name":"Application","slug":"pa_application","value":"Engine Protection"}]}" ["faq"]=> string(1954) "[{"question":"What is the pressure rating for this switch?","answer":"The Miller 259974 is rated to actuate at 7 PSI.","type":"JOSEF GAS"},{"question":"What does 'NC' mean in the product description?","answer":"NC stands for 'Normally Closed'. This means the electrical contacts are closed when the switch is at rest (0 PSI) and open when the pressure rises above the set point.","type":"JOSEF GAS"},{"question":"How do I connect the wires to this switch?","answer":"This switch features screw terminals. You will need to strip the wire ends or use ring\/fork terminals and tighten them down with a screwdriver for a secure connection.","type":"WELDERS"},{"question":"Will this fit my specific Miller welder?","answer":"This is a genuine Miller part used on various engine-driven models. Please check your machine's parts manual or verify your serial number to confirm compatibility with part number 259974.","type":"WELDERS"},{"question":"What are the symptoms of a bad oil pressure switch?","answer":"Symptoms can include the low oil pressure light staying on despite good oil levels, the engine shutting down immediately after starting, or oil leaking from the switch body.","type":"WELDERS"},{"question":"Can I use a generic automotive oil switch instead?","answer":"It is not recommended. Generic switches may have different pressure ratings or thread types. Using the OEM Miller 259974 ensures the correct 7 PSI activation point for your engine's safety.","type":"JOSEF GAS"},{"question":"Is this switch for gas or diesel engines?","answer":"It can be used on both, depending on the specific Miller machine model. The switch measures oil pressure regardless of fuel type.","type":"WELDERS"},{"question":"Does this switch control the oil pressure gauge?","answer":"Typically, this is a safety switch for warning lights or automatic shutdown (dummy light), not a variable sender for a gauge needle. Check your manual to be sure.","type":"JOSEF GAS"}]" ["update_status"]=> string(1) "0" ["update_elastic"]=> string(1) "0" } string(9) "MIL259974" array(12) { ["id"]=> string(5) "13191" ["sku"]=> string(9) "MIL259974" ["manufacturer_sku"]=> string(6) "259974" ["post_id"]=> string(7) "1774815" ["integrity_hash"]=> string(0) "" ["tax_hash"]=> string(32) "c2f466ee8e584cfc44c71868a4147729" ["product_data"]=> string(1078) "{"post_title":"SWITCH,PRESSURE OIL 7PSI NC CONT SCREW TERM","post_content":"","post_excerpt":"","post_status":"publish","post_type":"product","meta_input":{"um":"EA","_sku":"MIL259974","_price":"111.57","_regular_price":"170.64","_sale_price":"111.57","unit-cost":170.6399999999999863575794734060764312744140625,"currency":"US","cost":"65.63","promo":"111.57","list_price":"170.64","_width":"0","_length":"0","_weight":"1","_height":"0","supplier_id":"10101","whIntegrityHash":"1a4a8f510c020cd6cee7af8a197c9e0b_21","_stock":0,"_manage_stock":"yes","_stock_status":"onbackorder","_backorders":"yes","qty_pack":"1","map_product":"","manufacturer_sku":"259974","sub_brand":"","spec_sheets":"","packaging_desc":"1 PER EA","elastic_helper_sku":"MIL259974 MIL259974 MIL259974","elastic_helper_manufacturer_sku":"259974 259974 259974","elastic_helper_manufacturer_sku_pattern_1":"259974","elastic_helper_sku_pattern_1":"MIL259974","gtin":"715959657808","sub_status":""},"tax_input":{"endorsed":[],"product_cat":[2057,2056]},"attr":[{"name":"packaging-description","value":"1 PER EA"}]}" ["external_data"]=> string(10689) "{"suggested_alternative_name":"Miller 7 PSI Oil Pressure Safety Switch NC Screw Terminals","meta_description":"Ensure engine safety with the Miller 259974 Oil Pressure Switch. Rated for 7 PSI with Normally Closed contacts and screw terminals. Genuine OEM replacement part.","focus_keyword":"Miller 259974 oil pressure switch","key_specs":["Pressure Rating: 7 PSI","Contact Configuration: Normally Closed (NC)","Connection Style: Screw Terminals","Application: Engine Oil Monitoring"],"suggested_keywords":"Miller 259974 switch, oil pressure switch 7 psi, welder engine protection, Miller replacement parts, NC pressure switch, screw terminal switch, industrial pressure sensor, engine safety switch, Miller welder repair, low oil shutdown switch, engine driven welder parts, Miller electric components","possible_accessories":["Ring Terminals","Wire Strippers","Thread Sealant","Engine Oil","Oil Filter"],"related_products":[],"manufacturer_url":null,"brand_name":"Miller","manufacture":"Miller","suggested_categories":["welding-machines-fume-extractors > machine-repair-parts"],"series_name":"Miller Replacement Parts","advantages":"This OEM switch provides reliable engine protection by accurately monitoring oil pressure, featuring durable construction and secure screw terminals to withstand the high vibration of welding environments.","collection":"Engine Protection Parts","synonyms":"oil sender, low oil switch, oil pressure sensor, 7psi switch, engine safety cutoff","accessory_for":[],"product_type":"Machine Repair Part","product_description":"

    Reliable Engine Protection for Industrial Welding Equipment<\/h2>\n

    The Miller 259974 Switch, Pressure Oil 7Psi Nc Cont Screw Term<\/strong> is a critical component designed to safeguard the internal combustion engines powering Miller's industrial welding generators. In the demanding environment of heavy fabrication and field welding, engine reliability is paramount. This precision-engineered pressure switch serves as a vital sentinel, continuously monitoring the engine's oil pressure to prevent catastrophic mechanical failure. Engineered to specific OEM tolerances, this switch ensures that your equipment operates within safe parameters, triggering protective measures if oil pressure falls below the critical threshold.<\/p>\n\n

    Technically, the device is calibrated to actuate at 7 PSI<\/strong>. It features a Normally Closed (NC)<\/strong> contact configuration, meaning the circuit remains closed when the switch is at rest (zero pressure). This logic is commonly employed in safety circuits where the switch grounds a warning light or an ignition shutdown relay when pressure is absent or insufficient. As the engine builds oil pressure upon startup, the diaphragm within the switch expands, opening the contacts and extinguishing the warning light or enabling the run circuit, depending on the specific wiring logic of the machine. This fail-safe design ensures that a broken wire or loose connection is often detected immediately, rather than remaining hidden until a failure occurs.<\/p>\n\n

    The construction of the Miller 259974 emphasizes durability and connection integrity. It utilizes screw terminals<\/strong> for electrical connections, a superior choice for high-vibration environments typical of engine-driven welders. Unlike blade connectors which can vibrate loose over time, screw terminals allow for a positive, torqued connection that maintains continuity even under rough operating conditions. The switch body is constructed to resist the heat, oil, and grime found in engine compartments, ensuring a long service life. Using genuine Miller replacement parts like the 259974 guarantees compatibility with the existing wiring harness and mounting ports, eliminating the guesswork and potential risks associated with generic, universal switches that may not match the specific pressure curve or thread pitch required by Miller equipment.<\/p>\n\n

    For maintenance professionals and fleet managers, stocking critical spares like the 259974 is essential for minimizing downtime. A faulty oil pressure switch can lead to false alarms that stop production or, worse, fail to warn of actual low pressure conditions. By replacing aging switches with this authentic Miller component, you ensure the continued reliability and longevity of your valuable welding assets.<\/p>","product_description_text":"Reliable Engine Protection for Industrial Welding Equipment\nThe Miller 259974 Switch, Pressure Oil 7Psi Nc Cont Screw Term is a critical component designed to safeguard the internal combustion engines powering Miller's industrial welding generators. In the demanding environment of heavy fabrication and field welding, engine reliability is paramount. This precision-engineered pressure switch serves as a vital sentinel, continuously monitoring the engine's oil pressure to prevent catastrophic mechanical failure. Engineered to specific OEM tolerances, this switch ensures that your equipment operates within safe parameters, triggering protective measures if oil pressure falls below the critical threshold.\n\nTechnically, the device is calibrated to actuate at 7 PSI. It features a Normally Closed (NC) contact configuration, meaning the circuit remains closed when the switch is at rest (zero pressure). This logic is commonly employed in safety circuits where the switch grounds a warning light or an ignition shutdown relay when pressure is absent or insufficient. As the engine builds oil pressure upon startup, the diaphragm within the switch expands, opening the contacts and extinguishing the warning light or enabling the run circuit, depending on the specific wiring logic of the machine. This fail-safe design ensures that a broken wire or loose connection is often detected immediately, rather than remaining hidden until a failure occurs.\n\nThe construction of the Miller 259974 emphasizes durability and connection integrity. It utilizes screw terminals for electrical connections, a superior choice for high-vibration environments typical of engine-driven welders. Unlike blade connectors which can vibrate loose over time, screw terminals allow for a positive, torqued connection that maintains continuity even under rough operating conditions. The switch body is constructed to resist the heat, oil, and grime found in engine compartments, ensuring a long service life. Using genuine Miller replacement parts like the 259974 guarantees compatibility with the existing wiring harness and mounting ports, eliminating the guesswork and potential risks associated with generic, universal switches that may not match the specific pressure curve or thread pitch required by Miller equipment.\n\nFor maintenance professionals and fleet managers, stocking critical spares like the 259974 is essential for minimizing downtime. A faulty oil pressure switch can lead to false alarms that stop production or, worse, fail to warn of actual low pressure conditions. By replacing aging switches with this authentic Miller component, you ensure the continued reliability and longevity of your valuable welding assets.","suggested_attributes":[{"name":"Brand","values":["Miller"]},{"name":"Packaging Description","values":["1 Per Ea"]}],"extra_attributes":[{"name":"Product Type","values":["Oil Pressure Switch"]},{"name":"Pressure Rating","values":["7 PSI"]},{"name":"Contact Configuration","values":["Normally Closed (NC)"]},{"name":"Connection Type","values":["Screw Terminals"]},{"name":"Application","values":["Engine Protection"]}],"suggested_pretty_url":"miller-259974-oil-pressure-switch-7psi-nc","predecessor":"","releaseYear":2010,"releaseYearGuess":2010,"successor":"","features":["Calibrated 7 PSI actuation point for precise low-pressure detection","Normally Closed (NC) contact configuration at rest (0 PSI)","Robust screw terminals ensure vibration-resistant electrical connections","Designed specifically for Miller engine-driven welding equipment","Critical safety component for preventing engine seizure due to oil starvation","Direct OEM replacement ensures proper fitment and reliable operation","Compact housing design fits into tight engine compartments","Corrosion-resistant materials suitable for harsh industrial environments"],"applications":"

    • Engine-driven welding generators (e.g., Miller Bobcat, Trailblazer, Big Blue series)<\/li>
    • Industrial power units requiring low oil pressure shutdown<\/li>
    • Mobile fabrication equipment engine protection<\/li>
    • Replacement of faulty or leaking oil pressure sensors<\/li>
    • Preventative maintenance for high-hour welding machines<\/li><\/ul>","includes":"
      • 1 x Miller 259974 Oil Pressure Switch<\/li><\/ul>","faqs":[{"question":"What is the pressure rating for this switch?","answer":"The Miller 259974 is rated to actuate at 7 PSI.","type":"JOSEF GAS"},{"question":"What does 'NC' mean in the product description?","answer":"NC stands for 'Normally Closed'. This means the electrical contacts are closed when the switch is at rest (0 PSI) and open when the pressure rises above the set point.","type":"JOSEF GAS"},{"question":"How do I connect the wires to this switch?","answer":"This switch features screw terminals. You will need to strip the wire ends or use ring\/fork terminals and tighten them down with a screwdriver for a secure connection.","type":"WELDERS"},{"question":"Will this fit my specific Miller welder?","answer":"This is a genuine Miller part used on various engine-driven models. Please check your machine's parts manual or verify your serial number to confirm compatibility with part number 259974.","type":"WELDERS"},{"question":"What are the symptoms of a bad oil pressure switch?","answer":"Symptoms can include the low oil pressure light staying on despite good oil levels, the engine shutting down immediately after starting, or oil leaking from the switch body.","type":"WELDERS"},{"question":"Can I use a generic automotive oil switch instead?","answer":"It is not recommended. Generic switches may have different pressure ratings or thread types. Using the OEM Miller 259974 ensures the correct 7 PSI activation point for your engine's safety.","type":"JOSEF GAS"},{"question":"Is this switch for gas or diesel engines?","answer":"It can be used on both, depending on the specific Miller machine model. The switch measures oil pressure regardless of fuel type.","type":"WELDERS"},{"question":"Does this switch control the oil pressure gauge?","answer":"Typically, this is a safety switch for warning lights or automatic shutdown (dummy light), not a variable sender for a gauge needle. Check your manual to be sure.","type":"JOSEF GAS"}]}" ["compiled_data"]=> string(583) "{"categories":[2036,2040],"attributes":[{"name":"Brand","slug":"pa_brand","value":"Miller"},{"name":"Packaging Description","slug":"pa_packaging-description","value":"1 Per Ea"},{"name":"Product Type","slug":"pa_product-type","value":"Oil Pressure Switch"},{"name":"Pressure Rating","slug":"pa_pressure-rating","value":"7 PSI"},{"name":"Contact Configuration","slug":"pa_contact-configuration","value":"Normally Closed (NC)"},{"name":"Connection Type","slug":"pa_connection-type","value":"Screw Terminals"},{"name":"Application","slug":"pa_application","value":"Engine Protection"}]}" ["faq"]=> string(1954) "[{"question":"What is the pressure rating for this switch?","answer":"The Miller 259974 is rated to actuate at 7 PSI.","type":"JOSEF GAS"},{"question":"What does 'NC' mean in the product description?","answer":"NC stands for 'Normally Closed'. This means the electrical contacts are closed when the switch is at rest (0 PSI) and open when the pressure rises above the set point.","type":"JOSEF GAS"},{"question":"How do I connect the wires to this switch?","answer":"This switch features screw terminals. You will need to strip the wire ends or use ring\/fork terminals and tighten them down with a screwdriver for a secure connection.","type":"WELDERS"},{"question":"Will this fit my specific Miller welder?","answer":"This is a genuine Miller part used on various engine-driven models. Please check your machine's parts manual or verify your serial number to confirm compatibility with part number 259974.","type":"WELDERS"},{"question":"What are the symptoms of a bad oil pressure switch?","answer":"Symptoms can include the low oil pressure light staying on despite good oil levels, the engine shutting down immediately after starting, or oil leaking from the switch body.","type":"WELDERS"},{"question":"Can I use a generic automotive oil switch instead?","answer":"It is not recommended. Generic switches may have different pressure ratings or thread types. Using the OEM Miller 259974 ensures the correct 7 PSI activation point for your engine's safety.","type":"JOSEF GAS"},{"question":"Is this switch for gas or diesel engines?","answer":"It can be used on both, depending on the specific Miller machine model. The switch measures oil pressure regardless of fuel type.","type":"WELDERS"},{"question":"Does this switch control the oil pressure gauge?","answer":"Typically, this is a safety switch for warning lights or automatic shutdown (dummy light), not a variable sender for a gauge needle. Check your manual to be sure.","type":"JOSEF GAS"}]" ["update_status"]=> string(1) "0" ["update_elastic"]=> string(1) "0" } string(9) "MIL259974" array(12) { ["id"]=> string(5) "13191" ["sku"]=> string(9) "MIL259974" ["manufacturer_sku"]=> string(6) "259974" ["post_id"]=> string(7) "1774815" ["integrity_hash"]=> string(0) "" ["tax_hash"]=> string(32) "c2f466ee8e584cfc44c71868a4147729" ["product_data"]=> string(1078) "{"post_title":"SWITCH,PRESSURE OIL 7PSI NC CONT SCREW TERM","post_content":"","post_excerpt":"","post_status":"publish","post_type":"product","meta_input":{"um":"EA","_sku":"MIL259974","_price":"111.57","_regular_price":"170.64","_sale_price":"111.57","unit-cost":170.6399999999999863575794734060764312744140625,"currency":"US","cost":"65.63","promo":"111.57","list_price":"170.64","_width":"0","_length":"0","_weight":"1","_height":"0","supplier_id":"10101","whIntegrityHash":"1a4a8f510c020cd6cee7af8a197c9e0b_21","_stock":0,"_manage_stock":"yes","_stock_status":"onbackorder","_backorders":"yes","qty_pack":"1","map_product":"","manufacturer_sku":"259974","sub_brand":"","spec_sheets":"","packaging_desc":"1 PER EA","elastic_helper_sku":"MIL259974 MIL259974 MIL259974","elastic_helper_manufacturer_sku":"259974 259974 259974","elastic_helper_manufacturer_sku_pattern_1":"259974","elastic_helper_sku_pattern_1":"MIL259974","gtin":"715959657808","sub_status":""},"tax_input":{"endorsed":[],"product_cat":[2057,2056]},"attr":[{"name":"packaging-description","value":"1 PER EA"}]}" ["external_data"]=> string(10689) "{"suggested_alternative_name":"Miller 7 PSI Oil Pressure Safety Switch NC Screw Terminals","meta_description":"Ensure engine safety with the Miller 259974 Oil Pressure Switch. Rated for 7 PSI with Normally Closed contacts and screw terminals. Genuine OEM replacement part.","focus_keyword":"Miller 259974 oil pressure switch","key_specs":["Pressure Rating: 7 PSI","Contact Configuration: Normally Closed (NC)","Connection Style: Screw Terminals","Application: Engine Oil Monitoring"],"suggested_keywords":"Miller 259974 switch, oil pressure switch 7 psi, welder engine protection, Miller replacement parts, NC pressure switch, screw terminal switch, industrial pressure sensor, engine safety switch, Miller welder repair, low oil shutdown switch, engine driven welder parts, Miller electric components","possible_accessories":["Ring Terminals","Wire Strippers","Thread Sealant","Engine Oil","Oil Filter"],"related_products":[],"manufacturer_url":null,"brand_name":"Miller","manufacture":"Miller","suggested_categories":["welding-machines-fume-extractors > machine-repair-parts"],"series_name":"Miller Replacement Parts","advantages":"This OEM switch provides reliable engine protection by accurately monitoring oil pressure, featuring durable construction and secure screw terminals to withstand the high vibration of welding environments.","collection":"Engine Protection Parts","synonyms":"oil sender, low oil switch, oil pressure sensor, 7psi switch, engine safety cutoff","accessory_for":[],"product_type":"Machine Repair Part","product_description":"

        Reliable Engine Protection for Industrial Welding Equipment<\/h2>\n

        The Miller 259974 Switch, Pressure Oil 7Psi Nc Cont Screw Term<\/strong> is a critical component designed to safeguard the internal combustion engines powering Miller's industrial welding generators. In the demanding environment of heavy fabrication and field welding, engine reliability is paramount. This precision-engineered pressure switch serves as a vital sentinel, continuously monitoring the engine's oil pressure to prevent catastrophic mechanical failure. Engineered to specific OEM tolerances, this switch ensures that your equipment operates within safe parameters, triggering protective measures if oil pressure falls below the critical threshold.<\/p>\n\n

        Technically, the device is calibrated to actuate at 7 PSI<\/strong>. It features a Normally Closed (NC)<\/strong> contact configuration, meaning the circuit remains closed when the switch is at rest (zero pressure). This logic is commonly employed in safety circuits where the switch grounds a warning light or an ignition shutdown relay when pressure is absent or insufficient. As the engine builds oil pressure upon startup, the diaphragm within the switch expands, opening the contacts and extinguishing the warning light or enabling the run circuit, depending on the specific wiring logic of the machine. This fail-safe design ensures that a broken wire or loose connection is often detected immediately, rather than remaining hidden until a failure occurs.<\/p>\n\n

        The construction of the Miller 259974 emphasizes durability and connection integrity. It utilizes screw terminals<\/strong> for electrical connections, a superior choice for high-vibration environments typical of engine-driven welders. Unlike blade connectors which can vibrate loose over time, screw terminals allow for a positive, torqued connection that maintains continuity even under rough operating conditions. The switch body is constructed to resist the heat, oil, and grime found in engine compartments, ensuring a long service life. Using genuine Miller replacement parts like the 259974 guarantees compatibility with the existing wiring harness and mounting ports, eliminating the guesswork and potential risks associated with generic, universal switches that may not match the specific pressure curve or thread pitch required by Miller equipment.<\/p>\n\n

        For maintenance professionals and fleet managers, stocking critical spares like the 259974 is essential for minimizing downtime. A faulty oil pressure switch can lead to false alarms that stop production or, worse, fail to warn of actual low pressure conditions. By replacing aging switches with this authentic Miller component, you ensure the continued reliability and longevity of your valuable welding assets.<\/p>","product_description_text":"Reliable Engine Protection for Industrial Welding Equipment\nThe Miller 259974 Switch, Pressure Oil 7Psi Nc Cont Screw Term is a critical component designed to safeguard the internal combustion engines powering Miller's industrial welding generators. In the demanding environment of heavy fabrication and field welding, engine reliability is paramount. This precision-engineered pressure switch serves as a vital sentinel, continuously monitoring the engine's oil pressure to prevent catastrophic mechanical failure. Engineered to specific OEM tolerances, this switch ensures that your equipment operates within safe parameters, triggering protective measures if oil pressure falls below the critical threshold.\n\nTechnically, the device is calibrated to actuate at 7 PSI. It features a Normally Closed (NC) contact configuration, meaning the circuit remains closed when the switch is at rest (zero pressure). This logic is commonly employed in safety circuits where the switch grounds a warning light or an ignition shutdown relay when pressure is absent or insufficient. As the engine builds oil pressure upon startup, the diaphragm within the switch expands, opening the contacts and extinguishing the warning light or enabling the run circuit, depending on the specific wiring logic of the machine. This fail-safe design ensures that a broken wire or loose connection is often detected immediately, rather than remaining hidden until a failure occurs.\n\nThe construction of the Miller 259974 emphasizes durability and connection integrity. It utilizes screw terminals for electrical connections, a superior choice for high-vibration environments typical of engine-driven welders. Unlike blade connectors which can vibrate loose over time, screw terminals allow for a positive, torqued connection that maintains continuity even under rough operating conditions. The switch body is constructed to resist the heat, oil, and grime found in engine compartments, ensuring a long service life. Using genuine Miller replacement parts like the 259974 guarantees compatibility with the existing wiring harness and mounting ports, eliminating the guesswork and potential risks associated with generic, universal switches that may not match the specific pressure curve or thread pitch required by Miller equipment.\n\nFor maintenance professionals and fleet managers, stocking critical spares like the 259974 is essential for minimizing downtime. A faulty oil pressure switch can lead to false alarms that stop production or, worse, fail to warn of actual low pressure conditions. By replacing aging switches with this authentic Miller component, you ensure the continued reliability and longevity of your valuable welding assets.","suggested_attributes":[{"name":"Brand","values":["Miller"]},{"name":"Packaging Description","values":["1 Per Ea"]}],"extra_attributes":[{"name":"Product Type","values":["Oil Pressure Switch"]},{"name":"Pressure Rating","values":["7 PSI"]},{"name":"Contact Configuration","values":["Normally Closed (NC)"]},{"name":"Connection Type","values":["Screw Terminals"]},{"name":"Application","values":["Engine Protection"]}],"suggested_pretty_url":"miller-259974-oil-pressure-switch-7psi-nc","predecessor":"","releaseYear":2010,"releaseYearGuess":2010,"successor":"","features":["Calibrated 7 PSI actuation point for precise low-pressure detection","Normally Closed (NC) contact configuration at rest (0 PSI)","Robust screw terminals ensure vibration-resistant electrical connections","Designed specifically for Miller engine-driven welding equipment","Critical safety component for preventing engine seizure due to oil starvation","Direct OEM replacement ensures proper fitment and reliable operation","Compact housing design fits into tight engine compartments","Corrosion-resistant materials suitable for harsh industrial environments"],"applications":"

        • Engine-driven welding generators (e.g., Miller Bobcat, Trailblazer, Big Blue series)<\/li>
        • Industrial power units requiring low oil pressure shutdown<\/li>
        • Mobile fabrication equipment engine protection<\/li>
        • Replacement of faulty or leaking oil pressure sensors<\/li>
        • Preventative maintenance for high-hour welding machines<\/li><\/ul>","includes":"
          • 1 x Miller 259974 Oil Pressure Switch<\/li><\/ul>","faqs":[{"question":"What is the pressure rating for this switch?","answer":"The Miller 259974 is rated to actuate at 7 PSI.","type":"JOSEF GAS"},{"question":"What does 'NC' mean in the product description?","answer":"NC stands for 'Normally Closed'. This means the electrical contacts are closed when the switch is at rest (0 PSI) and open when the pressure rises above the set point.","type":"JOSEF GAS"},{"question":"How do I connect the wires to this switch?","answer":"This switch features screw terminals. You will need to strip the wire ends or use ring\/fork terminals and tighten them down with a screwdriver for a secure connection.","type":"WELDERS"},{"question":"Will this fit my specific Miller welder?","answer":"This is a genuine Miller part used on various engine-driven models. Please check your machine's parts manual or verify your serial number to confirm compatibility with part number 259974.","type":"WELDERS"},{"question":"What are the symptoms of a bad oil pressure switch?","answer":"Symptoms can include the low oil pressure light staying on despite good oil levels, the engine shutting down immediately after starting, or oil leaking from the switch body.","type":"WELDERS"},{"question":"Can I use a generic automotive oil switch instead?","answer":"It is not recommended. Generic switches may have different pressure ratings or thread types. Using the OEM Miller 259974 ensures the correct 7 PSI activation point for your engine's safety.","type":"JOSEF GAS"},{"question":"Is this switch for gas or diesel engines?","answer":"It can be used on both, depending on the specific Miller machine model. The switch measures oil pressure regardless of fuel type.","type":"WELDERS"},{"question":"Does this switch control the oil pressure gauge?","answer":"Typically, this is a safety switch for warning lights or automatic shutdown (dummy light), not a variable sender for a gauge needle. Check your manual to be sure.","type":"JOSEF GAS"}]}" ["compiled_data"]=> string(583) "{"categories":[2036,2040],"attributes":[{"name":"Brand","slug":"pa_brand","value":"Miller"},{"name":"Packaging Description","slug":"pa_packaging-description","value":"1 Per Ea"},{"name":"Product Type","slug":"pa_product-type","value":"Oil Pressure Switch"},{"name":"Pressure Rating","slug":"pa_pressure-rating","value":"7 PSI"},{"name":"Contact Configuration","slug":"pa_contact-configuration","value":"Normally Closed (NC)"},{"name":"Connection Type","slug":"pa_connection-type","value":"Screw Terminals"},{"name":"Application","slug":"pa_application","value":"Engine Protection"}]}" ["faq"]=> string(1954) "[{"question":"What is the pressure rating for this switch?","answer":"The Miller 259974 is rated to actuate at 7 PSI.","type":"JOSEF GAS"},{"question":"What does 'NC' mean in the product description?","answer":"NC stands for 'Normally Closed'. This means the electrical contacts are closed when the switch is at rest (0 PSI) and open when the pressure rises above the set point.","type":"JOSEF GAS"},{"question":"How do I connect the wires to this switch?","answer":"This switch features screw terminals. You will need to strip the wire ends or use ring\/fork terminals and tighten them down with a screwdriver for a secure connection.","type":"WELDERS"},{"question":"Will this fit my specific Miller welder?","answer":"This is a genuine Miller part used on various engine-driven models. Please check your machine's parts manual or verify your serial number to confirm compatibility with part number 259974.","type":"WELDERS"},{"question":"What are the symptoms of a bad oil pressure switch?","answer":"Symptoms can include the low oil pressure light staying on despite good oil levels, the engine shutting down immediately after starting, or oil leaking from the switch body.","type":"WELDERS"},{"question":"Can I use a generic automotive oil switch instead?","answer":"It is not recommended. Generic switches may have different pressure ratings or thread types. Using the OEM Miller 259974 ensures the correct 7 PSI activation point for your engine's safety.","type":"JOSEF GAS"},{"question":"Is this switch for gas or diesel engines?","answer":"It can be used on both, depending on the specific Miller machine model. The switch measures oil pressure regardless of fuel type.","type":"WELDERS"},{"question":"Does this switch control the oil pressure gauge?","answer":"Typically, this is a safety switch for warning lights or automatic shutdown (dummy light), not a variable sender for a gauge needle. Check your manual to be sure.","type":"JOSEF GAS"}]" ["update_status"]=> string(1) "0" ["update_elastic"]=> string(1) "0" } string(9) "MIL259974" array(12) { ["id"]=> string(5) "13191" ["sku"]=> string(9) "MIL259974" ["manufacturer_sku"]=> string(6) "259974" ["post_id"]=> string(7) "1774815" ["integrity_hash"]=> string(0) "" ["tax_hash"]=> string(32) "c2f466ee8e584cfc44c71868a4147729" ["product_data"]=> string(1078) "{"post_title":"SWITCH,PRESSURE OIL 7PSI NC CONT SCREW TERM","post_content":"","post_excerpt":"","post_status":"publish","post_type":"product","meta_input":{"um":"EA","_sku":"MIL259974","_price":"111.57","_regular_price":"170.64","_sale_price":"111.57","unit-cost":170.6399999999999863575794734060764312744140625,"currency":"US","cost":"65.63","promo":"111.57","list_price":"170.64","_width":"0","_length":"0","_weight":"1","_height":"0","supplier_id":"10101","whIntegrityHash":"1a4a8f510c020cd6cee7af8a197c9e0b_21","_stock":0,"_manage_stock":"yes","_stock_status":"onbackorder","_backorders":"yes","qty_pack":"1","map_product":"","manufacturer_sku":"259974","sub_brand":"","spec_sheets":"","packaging_desc":"1 PER EA","elastic_helper_sku":"MIL259974 MIL259974 MIL259974","elastic_helper_manufacturer_sku":"259974 259974 259974","elastic_helper_manufacturer_sku_pattern_1":"259974","elastic_helper_sku_pattern_1":"MIL259974","gtin":"715959657808","sub_status":""},"tax_input":{"endorsed":[],"product_cat":[2057,2056]},"attr":[{"name":"packaging-description","value":"1 PER EA"}]}" ["external_data"]=> string(10689) "{"suggested_alternative_name":"Miller 7 PSI Oil Pressure Safety Switch NC Screw Terminals","meta_description":"Ensure engine safety with the Miller 259974 Oil Pressure Switch. Rated for 7 PSI with Normally Closed contacts and screw terminals. Genuine OEM replacement part.","focus_keyword":"Miller 259974 oil pressure switch","key_specs":["Pressure Rating: 7 PSI","Contact Configuration: Normally Closed (NC)","Connection Style: Screw Terminals","Application: Engine Oil Monitoring"],"suggested_keywords":"Miller 259974 switch, oil pressure switch 7 psi, welder engine protection, Miller replacement parts, NC pressure switch, screw terminal switch, industrial pressure sensor, engine safety switch, Miller welder repair, low oil shutdown switch, engine driven welder parts, Miller electric components","possible_accessories":["Ring Terminals","Wire Strippers","Thread Sealant","Engine Oil","Oil Filter"],"related_products":[],"manufacturer_url":null,"brand_name":"Miller","manufacture":"Miller","suggested_categories":["welding-machines-fume-extractors > machine-repair-parts"],"series_name":"Miller Replacement Parts","advantages":"This OEM switch provides reliable engine protection by accurately monitoring oil pressure, featuring durable construction and secure screw terminals to withstand the high vibration of welding environments.","collection":"Engine Protection Parts","synonyms":"oil sender, low oil switch, oil pressure sensor, 7psi switch, engine safety cutoff","accessory_for":[],"product_type":"Machine Repair Part","product_description":"

            Reliable Engine Protection for Industrial Welding Equipment<\/h2>\n

            The Miller 259974 Switch, Pressure Oil 7Psi Nc Cont Screw Term<\/strong> is a critical component designed to safeguard the internal combustion engines powering Miller's industrial welding generators. In the demanding environment of heavy fabrication and field welding, engine reliability is paramount. This precision-engineered pressure switch serves as a vital sentinel, continuously monitoring the engine's oil pressure to prevent catastrophic mechanical failure. Engineered to specific OEM tolerances, this switch ensures that your equipment operates within safe parameters, triggering protective measures if oil pressure falls below the critical threshold.<\/p>\n\n

            Technically, the device is calibrated to actuate at 7 PSI<\/strong>. It features a Normally Closed (NC)<\/strong> contact configuration, meaning the circuit remains closed when the switch is at rest (zero pressure). This logic is commonly employed in safety circuits where the switch grounds a warning light or an ignition shutdown relay when pressure is absent or insufficient. As the engine builds oil pressure upon startup, the diaphragm within the switch expands, opening the contacts and extinguishing the warning light or enabling the run circuit, depending on the specific wiring logic of the machine. This fail-safe design ensures that a broken wire or loose connection is often detected immediately, rather than remaining hidden until a failure occurs.<\/p>\n\n

            The construction of the Miller 259974 emphasizes durability and connection integrity. It utilizes screw terminals<\/strong> for electrical connections, a superior choice for high-vibration environments typical of engine-driven welders. Unlike blade connectors which can vibrate loose over time, screw terminals allow for a positive, torqued connection that maintains continuity even under rough operating conditions. The switch body is constructed to resist the heat, oil, and grime found in engine compartments, ensuring a long service life. Using genuine Miller replacement parts like the 259974 guarantees compatibility with the existing wiring harness and mounting ports, eliminating the guesswork and potential risks associated with generic, universal switches that may not match the specific pressure curve or thread pitch required by Miller equipment.<\/p>\n\n

            For maintenance professionals and fleet managers, stocking critical spares like the 259974 is essential for minimizing downtime. A faulty oil pressure switch can lead to false alarms that stop production or, worse, fail to warn of actual low pressure conditions. By replacing aging switches with this authentic Miller component, you ensure the continued reliability and longevity of your valuable welding assets.<\/p>","product_description_text":"Reliable Engine Protection for Industrial Welding Equipment\nThe Miller 259974 Switch, Pressure Oil 7Psi Nc Cont Screw Term is a critical component designed to safeguard the internal combustion engines powering Miller's industrial welding generators. In the demanding environment of heavy fabrication and field welding, engine reliability is paramount. This precision-engineered pressure switch serves as a vital sentinel, continuously monitoring the engine's oil pressure to prevent catastrophic mechanical failure. Engineered to specific OEM tolerances, this switch ensures that your equipment operates within safe parameters, triggering protective measures if oil pressure falls below the critical threshold.\n\nTechnically, the device is calibrated to actuate at 7 PSI. It features a Normally Closed (NC) contact configuration, meaning the circuit remains closed when the switch is at rest (zero pressure). This logic is commonly employed in safety circuits where the switch grounds a warning light or an ignition shutdown relay when pressure is absent or insufficient. As the engine builds oil pressure upon startup, the diaphragm within the switch expands, opening the contacts and extinguishing the warning light or enabling the run circuit, depending on the specific wiring logic of the machine. This fail-safe design ensures that a broken wire or loose connection is often detected immediately, rather than remaining hidden until a failure occurs.\n\nThe construction of the Miller 259974 emphasizes durability and connection integrity. It utilizes screw terminals for electrical connections, a superior choice for high-vibration environments typical of engine-driven welders. Unlike blade connectors which can vibrate loose over time, screw terminals allow for a positive, torqued connection that maintains continuity even under rough operating conditions. The switch body is constructed to resist the heat, oil, and grime found in engine compartments, ensuring a long service life. Using genuine Miller replacement parts like the 259974 guarantees compatibility with the existing wiring harness and mounting ports, eliminating the guesswork and potential risks associated with generic, universal switches that may not match the specific pressure curve or thread pitch required by Miller equipment.\n\nFor maintenance professionals and fleet managers, stocking critical spares like the 259974 is essential for minimizing downtime. A faulty oil pressure switch can lead to false alarms that stop production or, worse, fail to warn of actual low pressure conditions. By replacing aging switches with this authentic Miller component, you ensure the continued reliability and longevity of your valuable welding assets.","suggested_attributes":[{"name":"Brand","values":["Miller"]},{"name":"Packaging Description","values":["1 Per Ea"]}],"extra_attributes":[{"name":"Product Type","values":["Oil Pressure Switch"]},{"name":"Pressure Rating","values":["7 PSI"]},{"name":"Contact Configuration","values":["Normally Closed (NC)"]},{"name":"Connection Type","values":["Screw Terminals"]},{"name":"Application","values":["Engine Protection"]}],"suggested_pretty_url":"miller-259974-oil-pressure-switch-7psi-nc","predecessor":"","releaseYear":2010,"releaseYearGuess":2010,"successor":"","features":["Calibrated 7 PSI actuation point for precise low-pressure detection","Normally Closed (NC) contact configuration at rest (0 PSI)","Robust screw terminals ensure vibration-resistant electrical connections","Designed specifically for Miller engine-driven welding equipment","Critical safety component for preventing engine seizure due to oil starvation","Direct OEM replacement ensures proper fitment and reliable operation","Compact housing design fits into tight engine compartments","Corrosion-resistant materials suitable for harsh industrial environments"],"applications":"

            • Engine-driven welding generators (e.g., Miller Bobcat, Trailblazer, Big Blue series)<\/li>
            • Industrial power units requiring low oil pressure shutdown<\/li>
            • Mobile fabrication equipment engine protection<\/li>
            • Replacement of faulty or leaking oil pressure sensors<\/li>
            • Preventative maintenance for high-hour welding machines<\/li><\/ul>","includes":"
              • 1 x Miller 259974 Oil Pressure Switch<\/li><\/ul>","faqs":[{"question":"What is the pressure rating for this switch?","answer":"The Miller 259974 is rated to actuate at 7 PSI.","type":"JOSEF GAS"},{"question":"What does 'NC' mean in the product description?","answer":"NC stands for 'Normally Closed'. This means the electrical contacts are closed when the switch is at rest (0 PSI) and open when the pressure rises above the set point.","type":"JOSEF GAS"},{"question":"How do I connect the wires to this switch?","answer":"This switch features screw terminals. You will need to strip the wire ends or use ring\/fork terminals and tighten them down with a screwdriver for a secure connection.","type":"WELDERS"},{"question":"Will this fit my specific Miller welder?","answer":"This is a genuine Miller part used on various engine-driven models. Please check your machine's parts manual or verify your serial number to confirm compatibility with part number 259974.","type":"WELDERS"},{"question":"What are the symptoms of a bad oil pressure switch?","answer":"Symptoms can include the low oil pressure light staying on despite good oil levels, the engine shutting down immediately after starting, or oil leaking from the switch body.","type":"WELDERS"},{"question":"Can I use a generic automotive oil switch instead?","answer":"It is not recommended. Generic switches may have different pressure ratings or thread types. Using the OEM Miller 259974 ensures the correct 7 PSI activation point for your engine's safety.","type":"JOSEF GAS"},{"question":"Is this switch for gas or diesel engines?","answer":"It can be used on both, depending on the specific Miller machine model. The switch measures oil pressure regardless of fuel type.","type":"WELDERS"},{"question":"Does this switch control the oil pressure gauge?","answer":"Typically, this is a safety switch for warning lights or automatic shutdown (dummy light), not a variable sender for a gauge needle. Check your manual to be sure.","type":"JOSEF GAS"}]}" ["compiled_data"]=> string(583) "{"categories":[2036,2040],"attributes":[{"name":"Brand","slug":"pa_brand","value":"Miller"},{"name":"Packaging Description","slug":"pa_packaging-description","value":"1 Per Ea"},{"name":"Product Type","slug":"pa_product-type","value":"Oil Pressure Switch"},{"name":"Pressure Rating","slug":"pa_pressure-rating","value":"7 PSI"},{"name":"Contact Configuration","slug":"pa_contact-configuration","value":"Normally Closed (NC)"},{"name":"Connection Type","slug":"pa_connection-type","value":"Screw Terminals"},{"name":"Application","slug":"pa_application","value":"Engine Protection"}]}" ["faq"]=> string(1954) "[{"question":"What is the pressure rating for this switch?","answer":"The Miller 259974 is rated to actuate at 7 PSI.","type":"JOSEF GAS"},{"question":"What does 'NC' mean in the product description?","answer":"NC stands for 'Normally Closed'. This means the electrical contacts are closed when the switch is at rest (0 PSI) and open when the pressure rises above the set point.","type":"JOSEF GAS"},{"question":"How do I connect the wires to this switch?","answer":"This switch features screw terminals. You will need to strip the wire ends or use ring\/fork terminals and tighten them down with a screwdriver for a secure connection.","type":"WELDERS"},{"question":"Will this fit my specific Miller welder?","answer":"This is a genuine Miller part used on various engine-driven models. Please check your machine's parts manual or verify your serial number to confirm compatibility with part number 259974.","type":"WELDERS"},{"question":"What are the symptoms of a bad oil pressure switch?","answer":"Symptoms can include the low oil pressure light staying on despite good oil levels, the engine shutting down immediately after starting, or oil leaking from the switch body.","type":"WELDERS"},{"question":"Can I use a generic automotive oil switch instead?","answer":"It is not recommended. Generic switches may have different pressure ratings or thread types. Using the OEM Miller 259974 ensures the correct 7 PSI activation point for your engine's safety.","type":"JOSEF GAS"},{"question":"Is this switch for gas or diesel engines?","answer":"It can be used on both, depending on the specific Miller machine model. The switch measures oil pressure regardless of fuel type.","type":"WELDERS"},{"question":"Does this switch control the oil pressure gauge?","answer":"Typically, this is a safety switch for warning lights or automatic shutdown (dummy light), not a variable sender for a gauge needle. Check your manual to be sure.","type":"JOSEF GAS"}]" ["update_status"]=> string(1) "0" ["update_elastic"]=> string(1) "0" } string(9) "MIL259974" array(12) { ["id"]=> string(5) "13191" ["sku"]=> string(9) "MIL259974" ["manufacturer_sku"]=> string(6) "259974" ["post_id"]=> string(7) "1774815" ["integrity_hash"]=> string(0) "" ["tax_hash"]=> string(32) "c2f466ee8e584cfc44c71868a4147729" ["product_data"]=> string(1078) "{"post_title":"SWITCH,PRESSURE OIL 7PSI NC CONT SCREW TERM","post_content":"","post_excerpt":"","post_status":"publish","post_type":"product","meta_input":{"um":"EA","_sku":"MIL259974","_price":"111.57","_regular_price":"170.64","_sale_price":"111.57","unit-cost":170.6399999999999863575794734060764312744140625,"currency":"US","cost":"65.63","promo":"111.57","list_price":"170.64","_width":"0","_length":"0","_weight":"1","_height":"0","supplier_id":"10101","whIntegrityHash":"1a4a8f510c020cd6cee7af8a197c9e0b_21","_stock":0,"_manage_stock":"yes","_stock_status":"onbackorder","_backorders":"yes","qty_pack":"1","map_product":"","manufacturer_sku":"259974","sub_brand":"","spec_sheets":"","packaging_desc":"1 PER EA","elastic_helper_sku":"MIL259974 MIL259974 MIL259974","elastic_helper_manufacturer_sku":"259974 259974 259974","elastic_helper_manufacturer_sku_pattern_1":"259974","elastic_helper_sku_pattern_1":"MIL259974","gtin":"715959657808","sub_status":""},"tax_input":{"endorsed":[],"product_cat":[2057,2056]},"attr":[{"name":"packaging-description","value":"1 PER EA"}]}" ["external_data"]=> string(10689) "{"suggested_alternative_name":"Miller 7 PSI Oil Pressure Safety Switch NC Screw Terminals","meta_description":"Ensure engine safety with the Miller 259974 Oil Pressure Switch. Rated for 7 PSI with Normally Closed contacts and screw terminals. Genuine OEM replacement part.","focus_keyword":"Miller 259974 oil pressure switch","key_specs":["Pressure Rating: 7 PSI","Contact Configuration: Normally Closed (NC)","Connection Style: Screw Terminals","Application: Engine Oil Monitoring"],"suggested_keywords":"Miller 259974 switch, oil pressure switch 7 psi, welder engine protection, Miller replacement parts, NC pressure switch, screw terminal switch, industrial pressure sensor, engine safety switch, Miller welder repair, low oil shutdown switch, engine driven welder parts, Miller electric components","possible_accessories":["Ring Terminals","Wire Strippers","Thread Sealant","Engine Oil","Oil Filter"],"related_products":[],"manufacturer_url":null,"brand_name":"Miller","manufacture":"Miller","suggested_categories":["welding-machines-fume-extractors > machine-repair-parts"],"series_name":"Miller Replacement Parts","advantages":"This OEM switch provides reliable engine protection by accurately monitoring oil pressure, featuring durable construction and secure screw terminals to withstand the high vibration of welding environments.","collection":"Engine Protection Parts","synonyms":"oil sender, low oil switch, oil pressure sensor, 7psi switch, engine safety cutoff","accessory_for":[],"product_type":"Machine Repair Part","product_description":"

                Reliable Engine Protection for Industrial Welding Equipment<\/h2>\n

                The Miller 259974 Switch, Pressure Oil 7Psi Nc Cont Screw Term<\/strong> is a critical component designed to safeguard the internal combustion engines powering Miller's industrial welding generators. In the demanding environment of heavy fabrication and field welding, engine reliability is paramount. This precision-engineered pressure switch serves as a vital sentinel, continuously monitoring the engine's oil pressure to prevent catastrophic mechanical failure. Engineered to specific OEM tolerances, this switch ensures that your equipment operates within safe parameters, triggering protective measures if oil pressure falls below the critical threshold.<\/p>\n\n

                Technically, the device is calibrated to actuate at 7 PSI<\/strong>. It features a Normally Closed (NC)<\/strong> contact configuration, meaning the circuit remains closed when the switch is at rest (zero pressure). This logic is commonly employed in safety circuits where the switch grounds a warning light or an ignition shutdown relay when pressure is absent or insufficient. As the engine builds oil pressure upon startup, the diaphragm within the switch expands, opening the contacts and extinguishing the warning light or enabling the run circuit, depending on the specific wiring logic of the machine. This fail-safe design ensures that a broken wire or loose connection is often detected immediately, rather than remaining hidden until a failure occurs.<\/p>\n\n

                The construction of the Miller 259974 emphasizes durability and connection integrity. It utilizes screw terminals<\/strong> for electrical connections, a superior choice for high-vibration environments typical of engine-driven welders. Unlike blade connectors which can vibrate loose over time, screw terminals allow for a positive, torqued connection that maintains continuity even under rough operating conditions. The switch body is constructed to resist the heat, oil, and grime found in engine compartments, ensuring a long service life. Using genuine Miller replacement parts like the 259974 guarantees compatibility with the existing wiring harness and mounting ports, eliminating the guesswork and potential risks associated with generic, universal switches that may not match the specific pressure curve or thread pitch required by Miller equipment.<\/p>\n\n

                For maintenance professionals and fleet managers, stocking critical spares like the 259974 is essential for minimizing downtime. A faulty oil pressure switch can lead to false alarms that stop production or, worse, fail to warn of actual low pressure conditions. By replacing aging switches with this authentic Miller component, you ensure the continued reliability and longevity of your valuable welding assets.<\/p>","product_description_text":"Reliable Engine Protection for Industrial Welding Equipment\nThe Miller 259974 Switch, Pressure Oil 7Psi Nc Cont Screw Term is a critical component designed to safeguard the internal combustion engines powering Miller's industrial welding generators. In the demanding environment of heavy fabrication and field welding, engine reliability is paramount. This precision-engineered pressure switch serves as a vital sentinel, continuously monitoring the engine's oil pressure to prevent catastrophic mechanical failure. Engineered to specific OEM tolerances, this switch ensures that your equipment operates within safe parameters, triggering protective measures if oil pressure falls below the critical threshold.\n\nTechnically, the device is calibrated to actuate at 7 PSI. It features a Normally Closed (NC) contact configuration, meaning the circuit remains closed when the switch is at rest (zero pressure). This logic is commonly employed in safety circuits where the switch grounds a warning light or an ignition shutdown relay when pressure is absent or insufficient. As the engine builds oil pressure upon startup, the diaphragm within the switch expands, opening the contacts and extinguishing the warning light or enabling the run circuit, depending on the specific wiring logic of the machine. This fail-safe design ensures that a broken wire or loose connection is often detected immediately, rather than remaining hidden until a failure occurs.\n\nThe construction of the Miller 259974 emphasizes durability and connection integrity. It utilizes screw terminals for electrical connections, a superior choice for high-vibration environments typical of engine-driven welders. Unlike blade connectors which can vibrate loose over time, screw terminals allow for a positive, torqued connection that maintains continuity even under rough operating conditions. The switch body is constructed to resist the heat, oil, and grime found in engine compartments, ensuring a long service life. Using genuine Miller replacement parts like the 259974 guarantees compatibility with the existing wiring harness and mounting ports, eliminating the guesswork and potential risks associated with generic, universal switches that may not match the specific pressure curve or thread pitch required by Miller equipment.\n\nFor maintenance professionals and fleet managers, stocking critical spares like the 259974 is essential for minimizing downtime. A faulty oil pressure switch can lead to false alarms that stop production or, worse, fail to warn of actual low pressure conditions. By replacing aging switches with this authentic Miller component, you ensure the continued reliability and longevity of your valuable welding assets.","suggested_attributes":[{"name":"Brand","values":["Miller"]},{"name":"Packaging Description","values":["1 Per Ea"]}],"extra_attributes":[{"name":"Product Type","values":["Oil Pressure Switch"]},{"name":"Pressure Rating","values":["7 PSI"]},{"name":"Contact Configuration","values":["Normally Closed (NC)"]},{"name":"Connection Type","values":["Screw Terminals"]},{"name":"Application","values":["Engine Protection"]}],"suggested_pretty_url":"miller-259974-oil-pressure-switch-7psi-nc","predecessor":"","releaseYear":2010,"releaseYearGuess":2010,"successor":"","features":["Calibrated 7 PSI actuation point for precise low-pressure detection","Normally Closed (NC) contact configuration at rest (0 PSI)","Robust screw terminals ensure vibration-resistant electrical connections","Designed specifically for Miller engine-driven welding equipment","Critical safety component for preventing engine seizure due to oil starvation","Direct OEM replacement ensures proper fitment and reliable operation","Compact housing design fits into tight engine compartments","Corrosion-resistant materials suitable for harsh industrial environments"],"applications":"

                • Engine-driven welding generators (e.g., Miller Bobcat, Trailblazer, Big Blue series)<\/li>
                • Industrial power units requiring low oil pressure shutdown<\/li>
                • Mobile fabrication equipment engine protection<\/li>
                • Replacement of faulty or leaking oil pressure sensors<\/li>
                • Preventative maintenance for high-hour welding machines<\/li><\/ul>","includes":"
                  • 1 x Miller 259974 Oil Pressure Switch<\/li><\/ul>","faqs":[{"question":"What is the pressure rating for this switch?","answer":"The Miller 259974 is rated to actuate at 7 PSI.","type":"JOSEF GAS"},{"question":"What does 'NC' mean in the product description?","answer":"NC stands for 'Normally Closed'. This means the electrical contacts are closed when the switch is at rest (0 PSI) and open when the pressure rises above the set point.","type":"JOSEF GAS"},{"question":"How do I connect the wires to this switch?","answer":"This switch features screw terminals. You will need to strip the wire ends or use ring\/fork terminals and tighten them down with a screwdriver for a secure connection.","type":"WELDERS"},{"question":"Will this fit my specific Miller welder?","answer":"This is a genuine Miller part used on various engine-driven models. Please check your machine's parts manual or verify your serial number to confirm compatibility with part number 259974.","type":"WELDERS"},{"question":"What are the symptoms of a bad oil pressure switch?","answer":"Symptoms can include the low oil pressure light staying on despite good oil levels, the engine shutting down immediately after starting, or oil leaking from the switch body.","type":"WELDERS"},{"question":"Can I use a generic automotive oil switch instead?","answer":"It is not recommended. Generic switches may have different pressure ratings or thread types. Using the OEM Miller 259974 ensures the correct 7 PSI activation point for your engine's safety.","type":"JOSEF GAS"},{"question":"Is this switch for gas or diesel engines?","answer":"It can be used on both, depending on the specific Miller machine model. The switch measures oil pressure regardless of fuel type.","type":"WELDERS"},{"question":"Does this switch control the oil pressure gauge?","answer":"Typically, this is a safety switch for warning lights or automatic shutdown (dummy light), not a variable sender for a gauge needle. Check your manual to be sure.","type":"JOSEF GAS"}]}" ["compiled_data"]=> string(583) "{"categories":[2036,2040],"attributes":[{"name":"Brand","slug":"pa_brand","value":"Miller"},{"name":"Packaging Description","slug":"pa_packaging-description","value":"1 Per Ea"},{"name":"Product Type","slug":"pa_product-type","value":"Oil Pressure Switch"},{"name":"Pressure Rating","slug":"pa_pressure-rating","value":"7 PSI"},{"name":"Contact Configuration","slug":"pa_contact-configuration","value":"Normally Closed (NC)"},{"name":"Connection Type","slug":"pa_connection-type","value":"Screw Terminals"},{"name":"Application","slug":"pa_application","value":"Engine Protection"}]}" ["faq"]=> string(1954) "[{"question":"What is the pressure rating for this switch?","answer":"The Miller 259974 is rated to actuate at 7 PSI.","type":"JOSEF GAS"},{"question":"What does 'NC' mean in the product description?","answer":"NC stands for 'Normally Closed'. This means the electrical contacts are closed when the switch is at rest (0 PSI) and open when the pressure rises above the set point.","type":"JOSEF GAS"},{"question":"How do I connect the wires to this switch?","answer":"This switch features screw terminals. You will need to strip the wire ends or use ring\/fork terminals and tighten them down with a screwdriver for a secure connection.","type":"WELDERS"},{"question":"Will this fit my specific Miller welder?","answer":"This is a genuine Miller part used on various engine-driven models. Please check your machine's parts manual or verify your serial number to confirm compatibility with part number 259974.","type":"WELDERS"},{"question":"What are the symptoms of a bad oil pressure switch?","answer":"Symptoms can include the low oil pressure light staying on despite good oil levels, the engine shutting down immediately after starting, or oil leaking from the switch body.","type":"WELDERS"},{"question":"Can I use a generic automotive oil switch instead?","answer":"It is not recommended. Generic switches may have different pressure ratings or thread types. Using the OEM Miller 259974 ensures the correct 7 PSI activation point for your engine's safety.","type":"JOSEF GAS"},{"question":"Is this switch for gas or diesel engines?","answer":"It can be used on both, depending on the specific Miller machine model. The switch measures oil pressure regardless of fuel type.","type":"WELDERS"},{"question":"Does this switch control the oil pressure gauge?","answer":"Typically, this is a safety switch for warning lights or automatic shutdown (dummy light), not a variable sender for a gauge needle. Check your manual to be sure.","type":"JOSEF GAS"}]" ["update_status"]=> string(1) "0" ["update_elastic"]=> string(1) "0" }
                    OVERVIEWWHATS INCLUDEDAPPLICATIONSFAQ

                    OVERVIEW

                    Reliable Engine Protection for Industrial Welding Equipment

                    The Miller 259974 Switch, Pressure Oil 7Psi Nc Cont Screw Term is a critical component designed to safeguard the internal combustion engines powering Miller's industrial welding generators. In the demanding environment of heavy fabrication and field welding, engine reliability is paramount. This precision-engineered pressure switch serves as a vital sentinel, continuously monitoring the engine's oil pressure to prevent catastrophic mechanical failure. Engineered to specific OEM tolerances, this switch ensures that your equipment operates within safe parameters, triggering protective measures if oil pressure falls below the critical threshold.

                    Technically, the device is calibrated to actuate at 7 PSI. It features a Normally Closed (NC) contact configuration, meaning the circuit remains closed when the switch is at rest (zero pressure). This logic is commonly employed in safety circuits where the switch grounds a warning light or an ignition shutdown relay when pressure is absent or insufficient. As the engine builds oil pressure upon startup, the diaphragm within the switch expands, opening the contacts and extinguishing the warning light or enabling the run circuit, depending on the specific wiring logic of the machine. This fail-safe design ensures that a broken wire or loose connection is often detected immediately, rather than remaining hidden until a failure occurs.

                    The construction of the Miller 259974 emphasizes durability and connection integrity. It utilizes screw terminals for electrical connections, a superior choice for high-vibration environments typical of engine-driven welders. Unlike blade connectors which can vibrate loose over time, screw terminals allow for a positive, torqued connection that maintains continuity even under rough operating conditions. The switch body is constructed to resist the heat, oil, and grime found in engine compartments, ensuring a long service life. Using genuine Miller replacement parts like the 259974 guarantees compatibility with the existing wiring harness and mounting ports, eliminating the guesswork and potential risks associated with generic, universal switches that may not match the specific pressure curve or thread pitch required by Miller equipment.

                    For maintenance professionals and fleet managers, stocking critical spares like the 259974 is essential for minimizing downtime. A faulty oil pressure switch can lead to false alarms that stop production or, worse, fail to warn of actual low pressure conditions. By replacing aging switches with this authentic Miller component, you ensure the continued reliability and longevity of your valuable welding assets.

                    Additional Information
                    ----- new values below ----
                    Product Type:Oil Pressure Switch
                    Pressure Rating:7 PSI
                    Contact Configuration:Normally Closed (NC)
                    Connection Type:Screw Terminals
                    Application:Engine Protection
                    Brand:Miller
                    Packaging Description:1 Per Ea

                    INCLUDED

                    • 1 x Miller 259974 Oil Pressure Switch

                    APPLICATIONS

                    • Engine-driven welding generators (e.g., Miller Bobcat, Trailblazer, Big Blue series)
                    • Industrial power units requiring low oil pressure shutdown
                    • Mobile fabrication equipment engine protection
                    • Replacement of faulty or leaking oil pressure sensors
                    • Preventative maintenance for high-hour welding machines

                    FAQ

                    What is the pressure rating for this switch?

                    The Miller 259974 is rated to actuate at 7 PSI.

                    What does 'NC' mean in the product description?

                    NC stands for 'Normally Closed'. This means the electrical contacts are closed when the switch is at rest (0 PSI) and open when the pressure rises above the set point.

                    How do I connect the wires to this switch?

                    This switch features screw terminals. You will need to strip the wire ends or use ring/fork terminals and tighten them down with a screwdriver for a secure connection.

                    Will this fit my specific Miller welder?

                    This is a genuine Miller part used on various engine-driven models. Please check your machine's parts manual or verify your serial number to confirm compatibility with part number 259974.

                    What are the symptoms of a bad oil pressure switch?

                    Symptoms can include the low oil pressure light staying on despite good oil levels, the engine shutting down immediately after starting, or oil leaking from the switch body.

                    Can I use a generic automotive oil switch instead?

                    It is not recommended. Generic switches may have different pressure ratings or thread types. Using the OEM Miller 259974 ensures the correct 7 PSI activation point for your engine's safety.

                    Is this switch for gas or diesel engines?

                    It can be used on both, depending on the specific Miller machine model. The switch measures oil pressure regardless of fuel type.

                    Does this switch control the oil pressure gauge?

                    Typically, this is a safety switch for warning lights or automatic shutdown (dummy light), not a variable sender for a gauge needle. Check your manual to be sure.

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