20402095 - Tweco 2040-2095 Replacement MIG Gun Trigger Switch

Don't Let a Bad Trigger Stop Your Weld

There is nothing more frustrating than getting set up for a perfect bead, dropping your hood, and pulling the trigger—only to get nothing. Or worse, the arc sputters and cuts out because your trigger switch is making bad contact. The Tweco 2040-2095 Trigger Switch is the standard replacement you need to get your favorite Tweco MIG gun back in action. If you are running a Tweco Spray Master or a Classic No. 2, 3, or 4 gun, this is likely the part that handles the business end of your welding.

Triggers take a beating. They get clicked thousands of times, dropped, and covered in shop dust. Eventually, they wear out. This OEM replacement drops right into your existing handle without any modification. It’s built to give you that crisp, positive "click" you’re used to, ensuring that when you pull the trigger, the gas flows and the wire feeds instantly. It’s a cheap insurance policy to keep in your toolbox; having a spare trigger means a ten-minute fix instead of a lost afternoon waiting for parts delivery.

Installation is straightforward for anyone comfortable with basic tools. Simply open up the gun handle, disconnect the leads from the old switch, and swap in the new one. The bagged packaging keeps the switch clean and free of corrosion until you are ready to use it. Don't struggle with a trigger that you have to wiggle or squeeze extra hard to make work. Swap it out with a genuine Tweco 2040-2095 and get back to laying down smooth, consistent welds with confidence.