36470 - Tweco Spray Master Replacement Trigger Switch Kit

Restore Your MIG Gun's Performance

Is your Tweco MIG gun acting up? There is nothing more frustrating for a welder than a trigger that doesn't work every time you pull it. If you are experiencing intermittent starts, having to wiggle the trigger to get an arc, or if the trigger feels "mushy" and unresponsive, it is likely time to replace the switch assembly. The Tweco 36470 Switch Kit is the exact solution you need to get your Spray Master MIG gun back to factory-fresh performance.

Designed specifically for the popular Spray Master series (including the MS250, MS350, and MS450), this kit replaces the internal mechanism that wears out over thousands of welding cycles. Over time, shop dust, metal filings, and general wear can cause the original switch to fail. Instead of buying an expensive new gun or struggling with unreliable equipment, a simple repair with this kit can save you time and money. The switch provides that crisp, tactile "click" you expect, giving you confident control over your arc starts and stops.

Why Choose the Genuine Tweco 36470 Kit?

Using genuine parts ensures that the switch fits perfectly inside your gun handle without modification. Cheap generic replacements often don't seat correctly, leading to a trigger that sticks or feels loose. This kit is built to Tweco's rugged standards, meaning it can handle the heat and abuse of a busy shop environment. Installation is straightforward for anyone familiar with basic tool maintenance—simply open the handle, disconnect the old switch, and install the new one. It’s a quick fix that makes a massive difference in your daily welding comfort and efficiency.

Don't let a ten-dollar part hold up a thousand-dollar job. Keep a spare Tweco 36470 Switch Kit in your toolbox so you are never down for long. Whether you are a professional fabricator or a serious hobbyist, maintaining your equipment is key to producing quality welds, and a reliable trigger is where it all starts.