164422 - Miller 164422 Replacement MIG Gun Head Tube / Gooseneck

Restore Precision with the Miller 164422 Head Tube

The Miller 164422 Head Tube is a critical replacement component designed to restore the functionality and performance of your Miller MIG welding gun. Often referred to as a gooseneck or gun neck, the head tube serves as the structural backbone of the torch's front end, guiding the welding wire from the handle to the contact tip while simultaneously conducting the welding current and shielding gas. Over time, head tubes can become damaged due to excessive heat, accidental drops, or thread wear, leading to poor conductivity, erratic wire feeding, and compromised gas coverage. Installing this genuine Miller replacement ensures that your equipment operates within the manufacturer's original specifications.

Engineered with high-quality conductive materials, this head tube minimizes electrical resistance, preventing overheating during prolonged welding sessions. Its precise internal geometry is crucial for the smooth passage of the wire liner, reducing drag and preventing wire shaving or bird-nesting that can interrupt production. The outer jacket is designed to provide necessary electrical insulation, protecting the operator and the workpiece from unintended arcing. When your MIG gun's neck is compromised, it affects every aspect of the weld; replacing it with the Miller 164422 is a cost-effective maintenance step that prolongs the life of your entire gun assembly.

Compatibility is key when selecting replacement parts. This head tube is manufactured to Miller's exact tolerances, ensuring a secure, leak-free connection with the gun handle and the gas diffuser. This tight seal is essential for maintaining laminar gas flow, which protects the molten weld pool from atmospheric contamination. Whether you are repairing a gun in an industrial fabrication shop or maintaining equipment in a maintenance facility, trusting genuine Miller parts guarantees reliability and safety. Please verify fitment with your specific machine or gun model serial number before purchase.