KP3161-1-62S - Lincoln Magnum PRO 550A Thread-On Bottleneck Nozzle 5/8" ID 1/8" Stickout

High-Performance Magnum PRO 550A MIG Nozzle

Upgrade your welding performance with the Lincoln Electric KP3161-1-62S Magnum PRO 550A Nozzle. Designed for professional welders who demand reliability under high heat, this nozzle is built to withstand the rigors of 550A welding applications. Its robust construction ensures that your front-end consumables last longer, reducing downtime for part changes and keeping your production line moving efficiently.

The KP3161-1-62S features a specialized bottleneck design that narrows at the tip. This profile is ideal for welders working on complex assemblies, as it provides superior sightlines to the arc and puddle while allowing the gun to fit into restricted spaces. The thread-on installation is a key feature, ensuring that the nozzle remains firmly in place and perfectly centered over the contact tip, delivering consistent shielding gas coverage to prevent porosity.

With a 5/8-inch inner diameter and a 1/8-inch stickout, this nozzle is tuned for precision. The stickout length helps maintain the correct electrical stickout (ESO) for stable arc transfer. Whether you are welding structural steel or heavy machinery, this genuine Lincoln Electric consumable ensures your Magnum PRO 550A gun operates at peak performance.