PAR44-564-15 - Parker 44-564-15 Replacement Liner for Tweco/Magnum 300-400A Guns

Smooth Wire Feeding for 3/64" Aluminum Setups

Every welder knows that the liner is the unsung hero of the MIG gun. If your liner is clogged, kinked, or just worn out, your entire day can be ruined by erratic feeding, burn-backs, and the dreaded bird-nest at the drive rolls. The Parker 44-564-15 is designed to get your torch running smoothly again. This 15-foot liner is built specifically for running 3/64-inch wire. If you are setting up your Tweco #3, #4, or Lincoln Magnum gun for aluminum welding, using the correct liner size is non-negotiable. A liner that is too large will cause the wire to wander and buckle, while one that is too tight will cause excessive drag.

This Parker liner offers the perfect internal clearance for 3/64" wire, ensuring that the wire glides smoothly from the feeder to the contact tip. The 15-foot length is ready to drop into your standard long-reach guns. Installation is straightforward: simply remove the old liner, unroll the new one (being careful to keep it straight), slide it in until it seats at the back end, and trim the front to the correct stick-out length for your specific diffuser and nozzle setup. A fresh liner can instantly improve arc stability and weld bead consistency, making your job easier and your welds cleaner.

Don't fight your equipment. If you are experiencing stuttering wire feed or excessive drag, especially when the cable is looped, it's time to swap out the conduit. This Parker replacement is rugged enough to handle the shop environment but precise enough to handle soft aluminum wire without shaving or binding. Keep a few of these in your consumables locker so you aren't caught off guard when a liner fails in the middle of a critical project. It fits the most common 300A and 400A guns found in shops across the country, making it a versatile spare for your welding cart.