KP3374-035A - Lincoln Magnum PRO 550A Spring Loaded Contact Tip .035

Steady Arcs and Longer Life for Your MIG Gun

As a welder, you know that a worn-out contact tip is the enemy of a good bead. When the hole in your tip gets too big or oval-shaped, the wire starts to wander inside, losing connection with the power source. This leads to a sputtering arc, erratic voltage, and the dreaded burnback that fuses the wire to the tip. The Lincoln Electric KP3374-035A Spring Loaded Contact Tip is designed to stop that problem before it starts. If you are running .035" (0.9 mm) wire at high amperages, this tip is a game-changer for your daily welding comfort and weld quality.

The secret lies in the internal spring mechanism. Unlike a standard hollow tube tip, this unit actively pushes the wire against the side of the tip wall. This means you get 100% electrical contact all the time, even if the tip wears a little bit. The result? A buttery smooth arc that starts instantly and stays stable, even when you are pushing the machine to its limits. Because the connection is solid, the tip doesn't get as hot as standard tips, which means it lasts much longer. You spend less time walking back to the tool crib for a new tip and more time dropping dimes.

Rated for a massive 550 Amps, this tip is built for the Magnum PRO series guns and can take a serious beating. Whether you are spraying arc on heavy plate or running pulse on technical joints, the consistency this tip provides allows you to focus on your puddle control rather than fighting your equipment. The spring-loaded design also helps correct for minor cast issues in the wire, ensuring the wire comes out of the nozzle straight and true, exactly where you aim it.

Installation is just as easy as a standard tip, but the performance upgrade is immediately noticeable. If you are tired of micro-arcing causing spatter explosions or having to change tips halfway through a shift just to keep your parameters stable, the KP3374-035A is the upgrade your torch needs. It’s professional-grade gear for welders who demand consistency and reliability under the hood.