633603 - ESAB Steel Wire Conduit Liner

Keep Your Bead Smooth and Steady

There is nothing more frustrating than being in the middle of a perfect pass and feeling the wire start to stutter. That 'chatter' in the gun usually means one thing: your liner is dirty, kinked, or worn out. The ESAB 633603 Steel Liner is your solution to getting back to that smooth, frying-bacon sound we all look for. Built tough for the daily grind, this steel liner is designed to take a beating while guiding your wire smoothly through the cable, no matter how much you twist and turn the torch.

Think of the liner as the backbone of your MIG gun. If it's clogged with shop dust or shavings from the wire, your feeder has to work twice as hard, and your arc is going to suffer. Replacing your liner is one of the cheapest and most effective ways to tune up your welder. The ESAB 633603 is made specifically for steel wire, providing a durable, low-friction path that prevents those annoying bird-nests at the drive rolls. Whether you are fabricating structural steel, fixing heavy equipment, or working on an automotive project, a fresh liner ensures that the wire hits the puddle exactly when it's supposed to.

Installation is a breeze. Simply lay your gun out flat to avoid any tension, pull the old liner, and slide this new ESAB steel liner in. Make sure to trim it correctly according to your gun's manual—a good fit is key to preventing wire burn-back. Don't wait until your wire jams completely in the middle of a job. Keep a spare ESAB 633603 liner in your toolbox so you're always ready to swap it out and keep the sparks flying. It’s a small part that makes a massive difference in how your machine runs.