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257710 - Miller Replacement Brazed Fin Heat Sink Assembly

Packaging: 1 per ea
$1,856.38/ea $1,148.18/1 per ea only $1,148.18/eaSave 38%

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OVERVIEW

Restore Your Welder's Cooling Efficiency

The Miller 257710 Heat Sink, Brazed Fin is a critical replacement component designed to keep your Miller welding equipment running at peak performance. In the demanding world of industrial welding, thermal management is the key to longevity and reliability. This genuine OEM part is engineered specifically to replace damaged or clogged heat sinks in compatible Miller power sources, ensuring that your machine can handle the heat of heavy-duty operation.

When a heat sink fails or becomes compromised by debris buildup that cannot be cleaned, the internal components of your welder—such as rectifiers, diodes, or IGBTs—are at risk of catastrophic failure due to overheating. The Miller 257710 utilizes a brazed fin construction, a method that bonds the cooling fins to the base plate with a metallurgical bond. This design significantly increases the surface area available for heat transfer compared to solid block or simple extruded aluminum sinks, allowing for more efficient cooling in a compact space.

At Josef Gas, we understand that downtime costs money. Using genuine Miller parts like the 257710 ensures that fitment is never an issue. You won't have to modify mounting brackets or worry about contact surfaces not aligning correctly with your power modules. This part is built to the exact specifications of the original factory component, restoring your machine's duty cycle and preventing nuisance thermal shutdowns. Whether you are performing routine maintenance or a critical repair, trust in OEM quality to extend the lifespan of your investment.

Please verify fitment by checking your machine's parts manual or serial number before ordering. Replacement parts are subject to frequent updates by the manufacturer, and ensuring you have the correct SKU for your specific model is essential for a successful repair.

Additional Information
Packaging Description:1 Per Ea, pack of 1
Product Type:Replacement Part
Component Type:Heat Sink
Construction:Brazed Fin
----- new values below ----
Product Type:Replacement Part
Component Type:Heat Sink
Construction:Brazed Fin
Brand:Miller OEM
Packaging Description:pack of 1

INCLUDED

  • 1 x Miller 257710 Heat Sink, Brazed Fin

APPLICATIONS

  • Thermal management for Miller welding power sources
  • Replacement of damaged or clogged heat sinks
  • Repair of overheating welding machines
  • Maintenance of inverter and rectifier cooling systems

FAQ

Its primary function is to dissipate heat generated by the welder's internal power components (like diodes or IGBTs) to prevent overheating and maintain the machine's duty cycle.

Because internal parts vary by model and serial number, you must check your machine's parts manual or look up the parts list using your specific serial number on the Miller website.

Brazed fin refers to a manufacturing process where the cooling fins are metallurgically bonded (brazed) to the base plate. This allows for taller, denser fins and better heat transfer compared to standard extruded aluminum heat sinks.

If the heat sink is merely dusty, cleaning with compressed air is standard maintenance. However, if the fins are bent, broken, corroded, or if the base is warped, replacement is necessary to ensure proper cooling.

Yes, typically when installing a heat sink onto power components, a thermal interface material (paste or pad) is required to fill microscopic gaps and ensure efficient heat transfer. Check your service manual for specifics.

OEM parts like the Miller 257710 are designed with the exact dimensions and thermal properties required for your specific machine. Generic replacements may not fit correctly or provide adequate cooling, risking damage to the welder.

Symptoms often include the welding machine shutting down frequently due to thermal overload (duty cycle errors), the fan running constantly without cooling the unit, or visible physical damage to the fins.

Electronic repair parts and internal components often have strict return policies. It is crucial to verify the part number against your machine's serial number before purchase to avoid restocking fees.