KP4523-1-75S - Lincoln Magnum PRO Water-Cooled MIG Nozzle 3/4 Inch ID 1/8 Inch Stickout

Optimize Your Water-Cooled MIG Setup

When you are running high amperages all day with a water-cooled gun, your front-end consumables are the first line of defense against downtime. The Lincoln Electric KP4523-1-75S Magnum PRO nozzle is built to handle the heat. Designed specifically for your Magnum PRO 400A or 500A water-cooled gun, this nozzle helps you maintain a stable arc and clean welds even during extended arc-on times. If you are tired of nozzles that overheat or collect spatter too quickly, upgrading to genuine Magnum PRO expendables is a smart move for your production line.

Visibility and Access
One of the standout features of this nozzle is the 1/8-inch stickout. Unlike flush or recessed nozzles, this design lets the contact tip extend slightly past the nozzle rim. Why does this matter? It gives you a better view of the puddle and the wire placement, which is critical when you are welding in tight corners or need precise control over the arc root. It allows you to get the arc closer to the work without the nozzle body hitting the metal, giving you that extra bit of maneuverability in complex joints.

Superior Gas Coverage
With a generous 3/4-inch bore, this nozzle delivers a wide, consistent column of shielding gas. This is essential when you are welding at higher currents where the weld pool is larger and more fluid. A wider bore ensures that the entire puddle stays protected, reducing the risk of porosity and oxidation. Combined with the water-cooling efficiency of your gun, this nozzle stays cooler longer, which means less spatter sticks to it and cleaning is easier. Keep your welds clean and your gun running smooth with the right nozzle for the job.