16641106 - Tweco 66J-60 Supra XT Water-Cooled Conductor Tube 60 Degree

Keep Your Supra XT Running Cool with the Tweco 66J-60

When you are pushing 500 or 600 amps all day on heavy structural steel or aluminum, your MIG gun takes a beating. The conductor tube (or gooseneck) is right in the heat zone, and eventually, even the toughest water-cooled necks need replacing. The Tweco 1664-1106 (Part # 66J-60) is the factory-original replacement for your Supra XT water-cooled gun. It features the standard 60-degree bend that most welders prefer for all-around comfort and visibility.

Why replace your conductor tube?
Over time, the internal water passages in a gooseneck can become clogged with mineral deposits, or the threads for the gas diffuser can get stripped from frequent consumable changes. A compromised tube can lead to overheating, which causes your contact tips to burn back faster and your nozzle insulators to fail. If you notice your gun running hotter than usual or you are struggling with erratic wire feeding that a new liner didn't fix, a bent or worn conductor tube might be the culprit. Swapping in a fresh 66J-60 restores that crisp, cool performance you expect from a Supra gun.

Built for the Industrial Grind
This isn't a light-duty hobby part. The 66J-60 is built with heavy-wall copper to carry massive current without acting like a resistor. The 60-degree angle is perfect for bench work and position welding, letting you keep your wrist in a neutral position while accessing the joint. The insulation is tough enough to withstand the sparks and spatter of a shipyard or heavy equipment manufacturing floor. Don't let a worn-out neck slow down your production—keep a spare 1664-1106 on hand to minimize downtime.

Quick Specs:

• Fits: Tweco Supra XT Water-Cooled Guns
• Amperage: Rated for 600A
• Angle: 60 Degrees
• Cooling: Water/Liquid