
The Miller 254678 is a high-quality, genuine OEM replacement tank cap designed specifically for Miller engine-driven welding equipment. Maintaining the integrity of your fuel system is critical for the longevity and performance of your machinery. This cap features a robust screw-on design with a 3.5-inch diameter, ensuring a tight seal that prevents contaminants such as dust, dirt, and moisture from entering the fuel tank. Contaminated fuel can lead to clogged filters, injector issues, and costly engine repairs, making a secure cap an essential component of your maintenance regimen.
One of the critical technical features of this cap is its integrated venting system. As fuel is consumed by the engine, a vacuum can form inside the tank if air is not allowed to replace the volume of the used fuel. This vacuum can restrict fuel flow, causing the engine to sputter, lose power, or stall completely. The Miller 254678 is engineered with a precise vent that equalizes pressure, ensuring a continuous and smooth supply of fuel to the engine under all load conditions. This is particularly important for welders operating at high amperages for extended periods.
In addition to its mechanical features, this product includes an 8-inch lanyard. This simple yet effective addition secures the cap to the machine, preventing it from being misplaced during refueling operations. In busy industrial environments or remote job sites, a lost fuel cap can cause significant downtime. The lanyard ensures the cap remains with the unit at all times. This part is a direct replacement for the original equipment, guaranteeing correct thread pitch and diameter for a hassle-free installation.
Key Specifications:
| Additional Information |
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| ----- new values below ---- |
| Product Type:Fuel Tank Cap |
| Diameter:3.5 in |
| Mounting Type:Screw-On |
| Features:Vented, Lanyard Included |
| Lanyard Length:8 in |
| Brand:Miller |
| Packaging Description:1 Per Ea |