KP2743-1-38R-B25 - Lincoln Magnum PRO 550A MIG Nozzle, 3/8 Inch ID, 1/8 Recess (25-Pack)

Lincoln Magnum PRO 550A MIG Nozzles – 3/8" Bore

Keep your Magnum PRO MIG gun running at peak performance with this 25-pack of Lincoln Electric KP2743-1-38R nozzles. Designed for professional welders who demand reliability, these nozzles are built to handle up to 550 amps, ensuring they won't degrade prematurely under high-heat conditions. The nozzle features a 3/8-inch inside diameter, which is ideal for getting into tight corners or root passes where a standard, wider nozzle might get hung up or obstruct your view of the puddle.

The 1/8-inch tip recess is a key feature for arc stability and consumable longevity. By recessing the contact tip, the nozzle acts as a shield, protecting the tip from the intense radiant heat of the arc and reducing the likelihood of the tip fusing to the work piece if you get too close. This recess also helps prevent spatter from bridging the gap between the tip and the nozzle wall, a common issue that can cause short circuits or disrupt gas flow. The result is less time spent cleaning or replacing tips and more time welding.

These nozzles are part of the Lincoln Magnum PRO system, known for its simplified maintenance and long-lasting components. The secure connection to the diffuser ensures that shielding gas is directed precisely over the weld pool, minimizing the risk of porosity. The copper alloy construction provides excellent thermal conductivity, pulling heat away from the front end of the gun to keep your consumables cooler.

This bulk pack (B25) is perfect for busy shops. Having a fresh nozzle on hand is essential for maintaining weld quality; a worn or spatter-clogged nozzle can lead to poor gas coverage and weld defects. With 25 nozzles in a single package, you can stock up your tool crib or welding cart and ensure your team has the parts they need to keep the sparks flying.