44-564-15 - Tweco Style 44-564-15 MIG Liner 15ft 5/64-Inch

Keep Your Arc Smooth and Your Wire Moving

Every welder knows the frustration of a bad liner. You're in the middle of a long bead, and suddenly the wire starts stuttering, the arc sputters, and you're left with a mess to grind out. Often, the culprit isn't the machine or the settings—it's the invisible conduit inside your gun cable. The Tweco Style 44-564-15 MIG Gun Liner is the fix you need to get back to smooth, buttery welding. Designed as a direct replacement for the standard 15-foot liners found in many heavy-duty guns, this conduit is built to handle the heat and the abuse of the shop floor.

This liner is specifically sized for 5/64-inch wire, a heavy gauge often used for structural steel and heavy fabrication. If you are running flux-core or solid wire of this diameter, you need a liner that offers just the right amount of clearance—too tight and it binds, too loose and the wire wanders, causing poor electrical contact at the tip. This 44 Series liner hits the sweet spot, providing a stable path for the wire to travel. It fits the legendary Tweco #3 and #4 guns, which are workhorses in the industry, as well as the ergonomic Eliminator series and compatible Lincoln Magnum setups. If your gun is rated for 300 to 400 amps and uses Tweco consumables, this is likely the part you need.

Durability is key when you're dragging a gun across a concrete floor or maneuvering around a jig. This liner is made from wound steel that resists kinking even when the cable is looped. It's tough enough to last, but affordable enough that you shouldn't hesitate to swap it out when things get gritty. A fresh liner solves a multitude of feeding problems, from "chatter" at the rollers to burn-backs at the tip. Don't let a $20 part ruin a $2000 job. Keeping a spare 44-564-15 in your toolbox ensures that when the wire starts dragging, you can swap it out in minutes and get back to burning metal.

Installation is a breeze. simply remove the nozzle, tip, and diffuser, disconnect the gun from the feeder, and pull the old liner out. Slide this new 15-footer in until it seats, trim the excess at the front end according to your gun's manual (usually flush or sticking out slightly), and lock it down. It's one of the cheapest and most effective maintenance tasks you can perform to keep your welder running like new. Whether you are welding structural beams, repairing heavy equipment, or just fabricating in the garage, trust this Tweco-style liner to deliver the wire where you need it, exactly when you need it.