14201127 - Tweco 42-116-15 MIG Gun Liner 1/16in 15ft

Smooth Feeding for 1/16" Wire

If your wire is stuttering, dragging, or birdnesting at the drive rolls, your liner is often the culprit. The Tweco 42-116-15 is the standard replacement liner for welders running heavy 1/16" (1.6mm) wire in a 15-foot gun. This isn't just a generic coil; it's a genuine Tweco 42 Series liner made from zinc-plated spring steel. That plating matters—it keeps the inside of the liner slick and rust-free, so your wire glides through even if the shop is humid or the gun has been sitting for a weekend.

Changing your liner is one of the cheapest and most effective ways to tune up your welder. Over time, copper dust, dirt, and metal shavings build up inside the coil, creating drag that ruins your bead profile and frustrates the operator. This liner is built tough to handle the stiffness of 1/16" solid or flux-cored wires. It comes ready to install; simply feed it down the cable, seat it in the power pin, and trim the excess at the front end according to your gun's manual.

Don't fight the feeder. If you are running a Tweco Spray Master or similar gun with 1/16" wire, keep a few of these 42-116-15 liners in your toolbox. A fresh liner ensures that the power source energy goes into the arc, not into pushing wire through a clogged tube. Get consistent starts and stops and smoother welds with a fresh conduit.