18425 - ESAB 18425 Replacement Potentiometer Assembly for TIG Foot Control

Get Your Smooth Arc Back

There is nothing more frustrating when TIG welding than a foot pedal that doesn't listen to you. You press down for more heat, and nothing happens—until suddenly it surges. or maybe you're trying to taper off at the end of a weld, and the arc flickers out prematurely. These are classic signs of a worn-out potentiometer in your foot control. The ESAB 18425 Potentiometer Assembly is the direct replacement part you need to fix these issues and get back to stacking dimes with confidence.

Think of the potentiometer as the communication line between your foot and the welder. When it wears out, the message gets garbled. This genuine ESAB replacement clears up the static. It is designed to fit perfectly inside your compatible ESAB or L-Tec foot pedal, restoring that buttery-smooth linear response you expect. When you push the pedal 50% of the way, you get 50% of your power—no guessing, no surging, and no dropouts. This is crucial for working on thin materials like aluminum or stainless steel, where heat control is everything.

Don't throw away an expensive foot pedal just because the electronics are tired. Replacing the potentiometer assembly is a smart, cost-effective way to breathe new life into your equipment. The 18425 is built tough to handle the shop environment, ensuring that once you fix it, it stays fixed for a long time. It comes ready to install, so you can spend less time tinkering with wires and more time under the hood.

If your pedal feels 'glitchy' or you can't seem to find the right amperage setting despite your machine being set correctly, this part is likely the culprit. Swap it out with the ESAB 18425 and feel the difference immediately. It’s about control, precision, and the satisfaction of a tool that works exactly how it's supposed to.