0366397003 - ESAB PSF 500 Torch Insulation Bushing Replacement

Keep Your PSF 500 Running Smoothly

If you are running an ESAB PSF 500 MIG gun, you know it's a workhorse. But even the toughest torches need maintenance. The Insulation Bushing (0366397003) is a small but mighty part that keeps your torch safe and your welds consistent. Located in the head of the gun, this bushing stops the electricity from jumping where it shouldn't—like to your nozzle or the torch neck. If this part cracks, burns out, or gets clogged with spatter, you might start seeing arc wandering, or worse, you'll short out your nozzle against the workpiece.

Why replace it? Over time, the heat from the arc and hot spatter can make the insulation brittle. A compromised bushing can cause your nozzle to become electrically "live," which is a safety hazard and ruins your gas coverage. Swapping out a worn bushing is a quick fix that can save you from buying a whole new torch neck or troubleshooting mysterious weld defects for hours.

This is the genuine ESAB part, meaning it fits your PSF 500 perfectly without forcing or jamming. It stands up to high heat and keeps your gas flowing correctly. Keep a few of these in your toolbox so you aren't stuck waiting on parts when you have a deadline to meet. It’s cheap insurance for high-quality welds.