20402098 - Tweco 2040-2098 Trigger Switch Assembly for No. 4/5/6 MIG Guns

Restore Your MIG Gun's Performance

Is your MIG gun misfiring or failing to start the arc when you pull the trigger? Get back to smooth, consistent welding with the genuine Tweco® Trigger Switch Assembly. Designed as a direct replacement for the legendary Tweco® No. 4, No. 5, and No. 6 MIG guns, this part brings your equipment back to factory specifications. There is nothing more frustrating for a welder than a sticky or unresponsive trigger, which can ruin a bead or slow down production. This high-quality switch assembly eliminates those issues, providing the crisp, responsive click you need to control your weld puddle with confidence.

Built to withstand the rigors of the shop, this trigger assembly is rated for amperage loads between 200 A and 450 A, ensuring it can handle everything from light sheet metal work to heavy structural fabrication. It is fully compatible with air-cooled setups and supports wire diameters from 0.023" up to 1/16" (0.062"). Because it is an authentic Tweco product, you don't have to worry about fitment issues; it drops right into your existing handle housing, making the repair quick and hassle-free.

Don't let a small part hold up a big job. Keeping your torch in top condition is vital for producing quality welds and maintaining efficiency. Whether you are repairing an old favorite torch or keeping a spare in your toolbox for emergencies, the Tweco Trigger Switch Assembly is the smart choice for professional welders who demand reliability. Invest in genuine parts to ensure your tools work as hard as you do.