10401113 - Tweco Classic 4 MIG Gun, 400A, 15ft, 1/16 Wire, Tweco Connection

The Legend: Tweco Classic #4 MIG Gun

If you have spent any time in a heavy fab shop, you know this gun. The Tweco Classic No. 4 is the welding gun that built the modern world. It isn't just a tool; it's an extension of your arm. This model (1040-1113) is the real deal—rated at a solid 400 Amps and equipped with a 15-foot cable to give you the freedom to move around your workpiece. It comes set up right out of the box for running 1/16" wire, so if you are burning heavy flux-core or pushing big hard wire, this is the gun you want in your hand.

Why do welders love the Classic #4? It starts with the handle. The ergonomic paddle switch is perfectly positioned and has that distinct, positive click that lets you know you're live. It’s designed to fit comfortably in your hand, even when you're wearing thick stick/MIG gloves, reducing the cramp factor during those long beads. The 60-degree conductor tube angle is just right for getting into tight joints while keeping your hand out of the heat.

Reliability is key when you are paid by the arc-hour. The Tweco #4 is famous for being field-repairable. If you kink a liner or strip a connection, you can fix it right there on the shop floor with basic tools. It uses the standard consumables you can find anywhere—14 series tips and 24 series nozzles—so you're never stuck waiting for parts. The cable is tough as nails, built to be dragged over steel plates, around corners, and through the grime without failing.

This unit features the classic Tweco backend connection, ensuring a solid electrical hookup to your feeder. If you are tired of flimsy, lightweight guns that melt down when you crank up the heat, it's time to get back to basics. Upgrade to the Tweco Classic No. 4 and experience the durability and performance that has made it the favorite of professional welders for generations.