KP4523-1-50S - Lincoln Magnum PRO Water-Cooled MIG Nozzle 1/2 ID 1/8 Stickout

Keep Your Cool with Magnum PRO

When you are pushing high amps all day, your consumables take a beating. The Lincoln Electric KP4523-1-50S Magnum PRO Water-Cooled Nozzle is built to help you stay welding longer with less hassle. Designed specifically for the Magnum PRO 400A and 500A water-cooled guns, this nozzle is an essential upgrade for welders who demand performance and longevity from their gear. The water-cooled design works in tandem with your torch's cooling system to pull heat away from the front end, preventing the nozzle from overheating and deforming under extreme duty cycles.

Better Visibility, Better Welds

Visibility is key to laying down a perfect bead, and the geometry of this nozzle is designed with that in mind. It features a 1/8-inch stickout, meaning your contact tip extends just past the end of the nozzle. This "stickout" relationship allows you to get closer to the work and see exactly where your wire is hitting the joint, which is a game-changer for fillet welds or intricate passes. The 1/2-inch inner diameter is the sweet spot for general purpose welding, providing ample gas coverage without being so bulky that it obstructs your view or limits access to tight spaces.

Fight Spatter with Nickel

Nobody likes stopping every few minutes to scrape spatter out of their nozzle. That is why Lincoln Electric plated the KP4523-1-50S in nickel. This premium finish creates a surface that spatter just doesn't want to stick to. When spatter does land, it often brushes right off, saving you time and frustration. This means your nozzle lasts longer, your gas flow stays smooth, and you spend more time burning wire and less time banging your torch against the table. The nickel plating also adds a layer of protection against corrosion and heat wear.

Reliable Shielding

A good weld starts with good gas coverage. This nozzle seats firmly onto your Magnum PRO gooseneck, ensuring a tight seal that directs shielding gas exactly where it needs to go. By eliminating leaks and turbulence, it helps you avoid porosity and achieve X-ray quality welds. Whether you are working on stainless steel, aluminum, or mild steel, having a reliable, cool-running nozzle like the KP4523-1-50S ensures your equipment won't be the bottleneck in your productivity.