20312231 - Tweco Standard Trigger Assembly for Spray Master and Classic MIG Guns

Revive Your Tweco MIG Gun with a New Trigger

There is nothing more frustrating than a MIG gun that won't fire when you need it to. If you are experiencing intermittent arc starts, having to squeeze the trigger extra hard to get the wire moving, or if your gun simply refuses to initiate, the culprit is likely a worn-out trigger switch. The Tweco 2031-2231 Standard Trigger Assembly is the exact replacement part you need to get your trusty Tweco Spray Master or Classic series gun back in action. Don't struggle with a faulty switch that ruins your rhythm and your welds; swapping out the trigger is one of the easiest and most effective repairs you can perform on your torch.

Designed specifically for the legendary Tweco Classic (No. 2 through No. 5) and the ergonomic Spray Master series, this trigger assembly drops right into the handle. It restores that crisp, responsive "click" you expect, giving you precise control over your arc starts and stops. A reliable trigger is crucial for tack welding, where split-second timing matters, and for long runs where maintaining a steady connection is key. This is the standard non-locking version, which is the industry standard for safety and control, ensuring the arc stops the moment you release your finger.

Installation is straightforward for anyone familiar with basic tool maintenance. Simply open up the handle case of your MIG gun, disconnect the leads from the old switch, and connect them to the new assembly. The molded shape fits perfectly into the handle recess, so there's no guessing or modification required. By using this genuine Tweco part, you ensure that your gun remains comfortable to hold and safe to operate. Keep your equipment running smoothly and your welds consistent by replacing a tired trigger before it fails completely.