KP3075-1-38S - Lincoln Electric Gas Nozzle, 3/8 in ID, 1/4 in Stickout, Thread-On

Premium Gas Coverage for Magnum PRO Guns

The Lincoln Electric KP3075-1-38S Gas Nozzle is a critical consumable component designed to deliver superior performance for welders using the Magnum® PRO 100L and 175L MIG gun platforms. Engineered with precision, this nozzle plays a vital role in directing shielding gas around the weld pool, protecting it from atmospheric contamination and ensuring porosity-free welds. The nozzle features a 3/8-inch (9.5 mm) internal diameter (ID), which provides a focused column of gas ideal for standard welding applications where access and visibility are key factors. The narrower orifice compared to standard 1/2-inch nozzles allows for better maneuverability in tighter joints while maintaining adequate coverage for the arc.

One of the defining characteristics of this specific nozzle is its 1/4-inch (6.4 mm) stickout. This extended tip relationship means the contact tip is recessed further inside the nozzle compared to flush or protruding setups. This configuration is particularly beneficial for higher current applications or when using spray transfer modes, as it helps protect the contact tip from excessive radiant heat and spatter, thereby extending the life of the front-end consumables. Additionally, the stickout aids in maintaining the correct electrical stickout (ESO) distance, which is crucial for stable arc characteristics and consistent penetration profiles.

Durability is at the forefront of the Magnum PRO line. The KP3075-1-38S is constructed with a robust copper alloy base and finished with high-quality nickel plating. This plating serves a dual purpose: it reflects radiant heat to keep the nozzle cooler during operation, and it provides a slick surface that resists the adhesion of welding spatter. When spatter does accumulate, the nickel finish makes it significantly easier to clean, often requiring just a simple tap or wipe. Furthermore, the nozzle utilizes coarse threads for its connection to the diffuser. Unlike fine threads that can easily cross-thread or seize due to thermal expansion and contraction, these coarse threads ensure that the nozzle can be easily unscrewed and replaced even after enduring the harsh thermal cycles of a long welding shift.

Choosing genuine Lincoln Electric consumables like the KP3075-1-38S ensures that your equipment operates at peak efficiency. Mismatched or generic nozzles can lead to turbulent gas flow, poor fitment, and premature failure. By sticking with the OEM specification, fabricators guarantee that their Magnum PRO 100L or 175L guns perform exactly as engineered, delivering high-quality welds with minimal downtime for maintenance.