0464667899 - Tweco #4 MIG Gun Power Pin Connector Kit

Restore Your Tweco #4 Gun with a Solid Connection

If your MIG gun is sputtering, getting hot at the feeder, or leaking gas at the back end, it might be time to replace the connector. The Tweco 4 Torch Connector Kit is the genuine fix for your Tweco #4 (400 amp) MIG gun. We know that a loose or worn-out power pin can ruin a good day of welding by causing erratic wire feeding and unstable arcs. This kit gives you everything you need to swap out that old, beat-up connection and get back to laying smooth beads.

This isn't just a cheap knock-off; it's the real deal from ESAB/Tweco. The solid brass pin handles the heat and current without melting down, and the fresh O-rings stop those annoying gas leaks that waste your argon/CO2 mix. It fits tight into the feeder, giving you that solid "click" you want to feel. Whether you dragged the machine by the gun one too many times or it's just seen years of hard use, this kit brings the back end of your torch back to life.

Don't risk frying your feeder's drive rolls or burning up your liner because of a bad connection. Swapping this out is a quick job that pays off immediately with a smoother arc and cooler running torch. Keep a spare in your toolbox so you aren't stuck waiting on parts when you should be burning wire.

Why Welders Choose This Kit

• Built Tough: Heavy-duty brass stands up to shop abuse.
• Perfect Fit: No filing or forcing; it slides right into Tweco-style feeders.
• Fixes Gas Leaks: Fresh seals mean better coverage and less porosity.