16401101 - Tweco 64A45 Conductor Tube | 45 Degree | No. 4 MIG Gun Replacement

Restore Your MIG Gun's Performance with the Tweco 64A45

Is your MIG gun sputtering, overheating, or feeding wire inconsistently? The problem might be right in the neck. The Tweco 64A45 Conductor Tube is the legendary replacement gooseneck for the workhorse Tweco No. 4 MIG gun. Known for its durability and reliability, this 45-degree tube is the standard choice for welders who need a comfortable, versatile angle for reaching joints in flat, horizontal, and vertical positions without straining their wrists.

Built for the Shop Floor
Welding environments are tough, and your equipment needs to be tougher. The 64A45 features a heavy-duty copper construction that handles the heat of 400-amp welding without flinching. The rugged outer insulation stands up to spatter, grime, and the occasional drop, ensuring that your gun stays electrically safe and operational. A damaged conductor tube can lead to poor arc starts, erratic wire feeding due to internal liner kinks, and gas coverage issues. Swapping out an old, bent, or clogged neck with a fresh 64A45 can instantly make your old gun feel brand new again.

Easy Installation and Compatibility
Designed as a direct replacement for the Tweco 1640-1101 part, this gooseneck installs in minutes. Simply loosen the set screw on your handle, slide out the old tube, and insert the new one. It mates perfectly with your existing Tweco consumables, including diffusers, tips, and nozzles. Whether you are fabricating structural steel, repairing heavy machinery, or working on a production line, trusting genuine Tweco parts ensures you spend less time troubleshooting and more time laying down quality beads. Keep a spare 64A45 in your tool crib to avoid downtime when accidents happen.