280001 - Miller 280001 Vented Tank Cap with Tether (Replaces 220711)

Genuine Miller Replacement Tank Cap

The Miller 280001 Cap, Tank Screw-On w/ Tether (Vented) is an essential replacement component designed to maintain the integrity and functionality of your Miller engine-driven welding equipment. As a genuine OEM part, it guarantees a perfect fit and reliable seal, replacing the older, obsolete part number 220711. In the demanding environments where welding generators operate—from dusty construction sites to remote pipelines—ensuring your fuel or fluid systems are sealed against contaminants is critical for engine longevity.

Vented Design for Optimal Performance

One of the key features of this cap is its vented architecture. Non-vented caps can cause a vacuum to form inside the fuel tank as fuel is consumed, which can starve the engine of fuel and cause it to stall or run poorly. The Miller 280001 allows air to enter the tank to replace the consumed fuel, ensuring a smooth, uninterrupted flow and consistent engine performance. This simple mechanism is vital for preventing unexpected downtime during critical welding operations.

Integrated Safety Tether

Field maintenance can be challenging, and small parts are easily lost in mud, gravel, or tall grass. This tank cap features a robust integrated tether that attaches directly to the machine. This design consideration ensures that when you unscrew the cap to refuel, it hangs securely by the filler neck rather than being placed on a dirty surface or dropped. This not only prevents loss but also keeps the inner side of the cap clean, preventing dirt from being introduced into your fuel system when the cap is replaced.

Durability and Compatibility

Constructed from high-quality, impact-resistant materials, this screw-on cap is built to withstand the vibration, heat, and UV exposure common to industrial welding applications. It is designed specifically for Miller equipment, ensuring that the threads align perfectly for a tight seal that prevents leaks and evaporation. Whether you are performing routine maintenance or replacing a damaged cap, the Miller 280001 is the reliable choice for keeping your welder running at peak efficiency.