M1425 - Miller .030-.035 Teflon Neck Liner for HD AP Fastip

Smooth Aluminum Feeding with Miller Quality

If you are welding aluminum, you know the struggle of bird-nesting and erratic wire feeding. The Miller M1425 Teflon Liner is your solution for maintaining a smooth, consistent arc when working with soft wires. Designed specifically for .030" to .035" aluminum wire, this liner replaces the standard steel coil in your gun's neck or specific assembly, ensuring that the wire glides effortlessly without snagging or shaving. Aluminum is soft and prone to buckling; using the correct Teflon liner is the single most effective upgrade you can make to prevent downtime caused by feed issues.

This 6-inch liner is built for HD AP (Heavy Duty) and Fastip setups, acting as a critical pathway in the most demanding part of your torch—the neck. Whether you are fabricating aluminum trailers, repairing automotive parts, or working on marine vessels, trusting genuine Miller parts means you spend less time fixing your gun and more time laying beads. The installation is straightforward, and the immediate improvement in wire feed performance makes it an essential consumable for any welder's kit. Don't let friction ruin your weld; switch to the M1425 Teflon liner for reliable performance.