20Z08 - Arcair 20Z08 75-Degree Head Assembly for K3000/K4000 Torches

Restore Your K4000 with the Arcair 20Z08 Head

When you are deep in a gouging job, your torch takes a beating. The head assembly is right at the front line, dealing with extreme heat, spatter, and mechanical stress. If your K3000 or K4000 torch is starting to overheat or the air flow feels inconsistent, it might be time to swap out the head. The Arcair 20Z08 is the factory-original 75-degree head assembly that gets your torch back to performing like new.

This isn't just a chunk of brass; it's a precision-engineered component designed to handle the massive current (up to 1000 amps on the K4000) used in air carbon arc gouging. The 75-degree angle is the industry standard for a reason—it gives you the best balance of control and comfort for most gouging angles. Whether you are back-gouging welds, removing defects, or cutting through cast iron, this head ensures the air jet is perfectly aligned with the electrode to blast away molten metal cleanly.

Don't risk your equipment or your weld quality with knock-off parts that might not seat correctly. A loose head can cause arcing inside the torch, ruining the cable and handle. The 20Z08 fits perfectly, seals tight, and conducts current efficiently. It’s built tough to survive the harsh conditions of shipyards, rail shops, and heavy equipment repair. Keep a spare in your toolbox so you never have to stop production for a blown torch head.

Why Choose Genuine Arcair?

• Perfect Fit: No air leaks, no loose connections.
• Durability: Stands up to the heat of heavy gouging.
• Performance: Maintains the correct air pressure and arc stability.