75077347 - American Weldquip 300/400A MIG Gun Nozzle Adaptor Seal

Keep Your Weldquip Gun Running Smoothly

If you are running an American Weldquip 300 or 400 Amp MIG gun, you know these torches are built for the long haul. However, even the toughest guns need maintenance. The Adaptor Nozzle Seal (75077347) is that small but mighty part that keeps your shielding gas where it belongs—on the weld. When this seal wears out, dries up, or cracks, you start getting gas leaks inside the nozzle assembly. That means wasted gas, poor coverage, and the dreaded porosity in your beads.

This is a genuine OEM part, meaning it fits perfectly without any wrestling or modification. It slides right onto the adaptor area, creating a tight seal for your nozzle. It’s designed to handle the heat of 400-amp spray transfer welding without melting or deforming prematurely. Replacing this seal is one of the cheapest and easiest ways to troubleshoot gas coverage issues. If your nozzle feels loose or you hear hissing from the back of the cup, it’s time to swap this out.

Don't risk a failed X-ray or a weak weld because of a worn-out O-ring or seal. Keep a few of these in your toolbox or parts bin. They are essential for maintaining the high performance you expect from your American Weldquip setup. Whether you are in a production line or a custom fab shop, fresh seals mean consistent welds and less downtime fixing problems that shouldn't happen.

• Perfect Fit: Designed exactly for Weldquip 300A and 400A models.
• Stop Leaks: Prevents shielding gas from escaping before it hits the puddle.
• Heat Resistant: Stands up to the high temperatures of industrial welding.
• Easy Install: Swaps out in seconds during routine nozzle cleaning.