9SS19580 - Lincoln Electric S19580 Gooseneck Locknut for Magnum PRO 250L

Secure Your Magnum PRO 250L with the S19580 Locknut

If you are running a Lincoln Electric Magnum PRO 250L MIG gun, you know that rigidity and stability are key to laying down good beads. The Lincoln S19580 Locknut is the specific part you need to keep your gooseneck exactly where you want it. Over time, the constant twisting, turning, and heat cycles of daily welding can take a toll on the threads and fasteners of your torch. A loose gooseneck isn't just annoying—it's a performance killer. It can cause your contact tip to wander, make the gun feel sloppy in your hand, and even interrupt the electrical flow, leading to a sputtering arc or a hot handle.

This genuine Lincoln Electric replacement part is designed to restore your gun to factory-fresh tightness. Don't settle for makeshift fixes or generic nuts that might not have the correct thread pitch or heat resistance. The S19580 is built to handle the abuse of the shop floor. Whether you are replacing a damaged neck or just performing a deep clean and overhaul of your equipment, having a fresh locknut ensures that when you tighten everything back up, it stays tight. A solid connection at the neck also helps ensure your shielding gas makes it all the way to the nozzle without leaking out at the handle, protecting your weld pool from porosity.

For welders who take pride in their tools, maintenance is part of the job. We recommend checking the tightness of your gooseneck periodically, especially if you rotate it frequently for different joint angles. If you notice the threads on your current nut are looking worn or cross-threaded, swap it out with the S19580 immediately. It’s a small part that makes a big difference in how your gun handles. Keep your Magnum PRO 250L running like a pro with the right hardware.

This locknut is compatible specifically with the 250L model, which is a favorite for its balance of power and maneuverability. Don't let a loose front end ruin your day or your welds. Grab a replacement S19580 and keep your arc smooth and your gun solid.