16401104 - Tweco 64A-60 Conductor Tube, 60 Degree, 400 Amp (1640-1104)

Get Your Torch Back in Action

Is your MIG gun sputtering, overheating, or feeding wire erratically? The culprit might be a damaged or clogged conductor tube. The Tweco 1640-1104 (64A-60) is the legendary replacement neck for the Tweco No. 4 MIG gun, the workhorse of the welding industry. Whether you dropped your gun, hammered it too hard against a fixture, or it's simply worn out from thousands of hours of arc time, swapping in a fresh conductor tube is one of the fastest ways to restore your torch to like-new performance.

Built for the Grind

Welding is a tough job, and your equipment needs to be tougher. This conductor tube is built with heavy-wall copper to withstand the intense heat of 400-amp welding without melting or deforming. The 60-degree bend is the classic angle that most welders prefer—it gets you into the joint comfortably without forcing your wrist into awkward positions. The insulation is durable and resistant to cuts and abrasion, keeping you safe from shocks and preventing arc-outs against your table or part.

Why Choose Genuine Tweco?

While cheap knock-offs exist, genuine Tweco parts like the 64A-60 are machined to tighter tolerances. This means your gas diffuser screws on smoothly, your nozzle seats perfectly concentric, and your liner fits without binding. A smooth wire path means a stable arc, less spatter, and less frustration. Don't let a bent neck slow down your production. Keep a spare 1640-1104 in your toolbox and keep the sparks flying. This tube fits the Classic No. 4 gun and other compatible 400A systems using the 64-series architecture.