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Struggling with bird-nesting and erratic wire feeding while welding aluminum? The solution might be as simple as changing your liner. The Tweco 42N-3545-15 (Part #1420-1003) is a premium nylon conduit liner specifically manufactured for running aluminum wire through your MIG gun. Standard steel liners are too abrasive for soft aluminum, causing the wire to shave off and clog your equipment. This nylon liner provides a slick, friction-free surface that lets the wire glide smoothly from the feeder to the contact tip.
Perfect Fit for Tweco Guns
Designed for 15-foot cable assemblies, this liner is compatible with most standard Tweco MIG guns that use 42 Series consumables. It is sized perfectly for the most common aluminum wire diameters: 0.035" and 3/64". Whether you are repairing a boat, working on a trailer, or fabricating custom aluminum parts, this liner is an essential upgrade for your setup. It comes complete with the brass stop and O-ring needed for a secure installation.
Why Choose Nylon?
Aluminum wire is soft and pliable. Pushing it through a 15-foot steel coil is like pushing a wet noodle through a straw—it wants to buckle and drag. The Tweco nylon conduit supports the wire along its entire length, preventing buckling and ensuring a steady arc. Don't let feed issues ruin your welds or your patience. Swap out your steel liner for the Tweco 42N-3545-15 and experience the difference a proper conduit makes in your aluminum welding projects.
| Additional Information |
|---|
| Brand:Tweco |
| Item:Liner |
| Wire Type:Aluminum |
| Length:15 ft |
| Wire Size:0.035" - 0.045" |
| Material:Nylon |
| Part Number:42N-3545-15 |
| Series:42 Series |
| Specific Wire Range:0.035" - 3/64" |
| Packaging Description:pack of 1 |
