KP3988-45 - Lincoln Electric KP3988-45 Magnum PRO AL Gun Tube 45° Fixed Air-Cooled

Precision Engineered for Magnum PRO AL Guns

Maximize the uptime of your aluminum welding operations with the Lincoln Electric KP3988-45 Gun Tube. This replacement conductor tube is manufactured to precise tolerances for the Magnum PRO AL Air-Cooled Push-Pull gun series. The 45-degree angle is industry-standard for accessing a wide variety of joint configurations without placing undue strain on the welder's wrist. Unlike rotatable necks, this fixed version offers a solid, immovable connection, preferred by operators who require absolute rigidity in their torch setup.

The internal geometry of the KP3988-45 is optimized to support the liner and wire, facilitating the smooth transfer of soft aluminum filler metals like 4043 and 5356. Any kinks, dents, or internal arcing within a gun tube can create friction that results in "bird-nesting" or burn-back. Installing a fresh KP3988-45 eliminates these variables, restoring the gun's ability to deliver wire consistently. The tube also features robust insulation and high-conductivity copper components to handle the amperage loads typical of air-cooled aluminum welding procedures.

Installation is straightforward, utilizing the standard connection points of the Magnum PRO AL handle. This part is strictly for air-cooled models and is not compatible with water-cooled versions. Whether you are repairing a damaged torch or stocking critical spares to prevent downtime, the KP3988-45 delivers the OEM quality and performance expected from Lincoln Electric products.