M1507 - Miller Style Teflon Liner for .030-.035 Aluminum Wire

Smooth Aluminum Wire Feeding for Miller Guns

Welding aluminum requires precision and the right equipment to avoid common headaches like bird-nesting and erratic arc stability. The Miller Style Teflon Liner is engineered specifically to address the challenges of feeding soft aluminum wire through your MIG gun cable. Designed for use with .030" to .035" (0.8mm - 0.9mm) wire, this liner features a low-friction Teflon (PTFE) core that allows the wire to glide smoothly from the feeder to the contact tip.

Standard steel liners are abrasive and can scrape soft aluminum wire, creating shavings that clog the liner and lead to feed failures. This Teflon replacement eliminates that friction, ensuring your wire remains intact and feeds at a consistent speed. It is fully compatible with popular Miller M-Series MIG guns, including the M-10, M-15, M-25, and M-40 models often found on Millermatic machines. Whether you are fabricating aluminum boat parts, repairing automotive components, or performing general maintenance, this liner is a critical upgrade for your setup.

Installation is straightforward. The liner comes in a standard length (typically 15 feet) that accommodates most gun assemblies and can be easily trimmed to exact specifications. By switching to a dedicated Teflon liner, you significantly reduce downtime caused by feed jams, allowing you to focus on laying down high-quality aluminum welds.

Key Benefits

• Friction Reduction: PTFE material minimizes drag on soft wires.


• Compatibility: Fits standard Miller M-Series guns found on Millermatic welders.


• Durability: Resists kinking and wear during regular use.