0459990047 - ESAB PSF Series MIG Gun Neck Insulator

Keep Your ESAB PSF Gun Running Like New

If you are running an ESAB PSF MIG gun, you know it's a workhorse, but even the toughest tools need maintenance. The ESAB Neck Insulator (0459990047) is that small but mighty part that keeps your torch safe and your arc stable. Located at the business end of your gun, this insulator takes a beating from the heat and spatter every time you pull the trigger. Over time, these insulators can crack, chip, or become coated in carbon, which can lead to frustrating issues like erratic arcs or even internal shorting that ruins your contact tips and nozzles prematurely.

Don't let a worn-out insulator slow down your production. This genuine ESAB replacement is built to fit your PSF 250, 305, 405, or 505 gun perfectly. Unlike cheap knock-offs that might rattle or melt, this OEM part slides right into place and holds up against the high heat of heavy-duty welding. It ensures that the electricity goes exactly where it's supposed to—into the wire—and not arcing out against the nozzle or other gun parts. It’s a quick fix that can save you from buying a whole new gun neck down the road.

Swapping out your neck insulator is one of the easiest repairs you can do. Simply disassemble the front end of your torch, remove the old, damaged insulator, and pop this new one on. It’s smart to keep a few of these in your toolbox or supply cabinet so you aren't stuck waiting on shipping when one finally gives out. Protect your equipment and keep your welds clean with the right parts for the job.