63-6202 - Tregaskiss Style 402-5 Aluminum Shock Washer Replacement

Keep Your MIG Gun Running Smoothly

Every welder knows that the small parts inside a MIG gun are just as important as the power source itself. The Shock Washer 402-5 Tregaskiss Style is your go-to replacement when you're rebuilding or servicing your 300A or 400A torch. Designed to replace the standard 402-5 part, this aluminum washer is built to take a beating and keep your gun firing reliably shift after shift.

Why worry about a shock washer? Because it's the unsung hero that keeps your nozzle and diffuser tight and aligned. Over time, heat and vibration can wear down internal components, leading to a rattle in the gun or, worse, electrical issues. This aluminum washer acts as a sturdy spacer and shock absorber, protecting the expensive brass and copper parts of your torch head from unnecessary wear. It ensures everything fits together snugly so you can focus on the puddle, not on a loose nozzle.

This part is perfect for fabricators who want high-quality replacements without the high price tag of OEM branding. It fits perfectly into Tregaskiss-style guns, meaning you don't have to struggle with parts that are "almost" the right size. Whether you are running a 300-amp setup for general fabrication or a 400-amp beast for heavy structural work, this washer is up to the task.

Don't let a ten-cent problem cause a hundred-dollar downtime. Keep a few of these shock washers in your toolbox or parts bin. When you're swapping out a diffuser or cleaning up the neck, check your washer. If it looks beat up, toss in a fresh one. It’s a quick fix that helps extend the life of your MIG gun and keeps your welds consistent. Rugged, reliable, and ready for work—just like you.