16301188 - Tweco MS6345 Spray Master Conductor Tube, 45 Degree

Restore Your Spray Master's Performance

Is your MIG gun sputtering, overheating, or just not reaching the joint comfortably anymore? It might be time to replace the conductor tube. The Tweco MS6345 is the authentic 45-degree "gooseneck" for Tweco Spray Master 350 and 450 Amp MIG guns. Over time, the threads on your conductor tube can become stripped from frequent consumable changes, or the internal surface can degrade, leading to poor wire feeding and erratic arcs. Swapping out a damaged neck is one of the quickest ways to make an old gun feel new again.

Optimized for Comfort and Access
The 45-degree angle of the MS6345 is the industry standard for a reason—it allows you to weld in flat, horizontal, and vertical positions with a natural wrist angle, reducing fatigue during long shifts. The tube is robust enough to handle the radiant heat of spray transfer welding, a common application for the Spray Master series, without softening or losing alignment.

Seamless Compatibility
Because this is a genuine Tweco part, you don't have to worry about your gas diffuser or nozzle not fitting correctly. It accepts standard Spray Master consumables perfectly. The heavy-duty insulation on the exterior protects the neck from shorting out if you accidentally bump the workpiece, keeping you and your equipment safe. Whether you are fabricating heavy structural steel or performing maintenance repairs, a straight and conductive neck is vital for consistent weld quality.