258475 - Miller XR-Aluma-Pro Water-Cooled Head Tube 180-Degree 4-Inch Centerfire

Optimize Your Reach with the Miller 258475 Head Tube

Upgrade or repair your Miller push-pull gun with the Miller 258475 Head Tube Assembly, a robust water-cooled component designed for the serious industrial welder. This specific model features a 180-degree straight neck geometry, which distinguishes it from standard curved goosenecks. A straight neck is an invaluable tool in a welder's arsenal, allowing for a direct, pencil-like approach to the weld puddle. This is particularly useful when welding inside pipes, deep channels, or between narrow stiffeners where a curved neck would be obstructed. At 4 inches in length, it provides adequate clearance from the handle while maintaining excellent control.

This head tube is engineered for the XR-Aluma-Pro and XR-Pistol-Pro water-cooled guns and is fully compatible with Miller's Centerfire consumable system. The Centerfire system is renowned for improving arc starts and weld quality by keeping the contact tip centered in the gas stream. Because this head tube is water-cooled, it efficiently dissipates the intense heat generated during high-amperage spray transfer MIG welding, significantly extending the life of your diffusers, nozzles, and tips. A cooler front end means less downtime for consumable changes and more arc-on time.

Installation is straightforward, designed to seat securely into the gun body to prevent coolant leakage and ensure maximum current transfer. If your current head tube is bent, leaking, or has damaged threads, the Miller 258475 is the direct OEM replacement you need to get back to peak performance. It is built with heavy-duty materials to resist impact and heat deformation, ensuring it stands up to the rigors of daily shop use.

Performance Benefits

• Straight Access: 180-degree angle allows welding in tight, linear spaces.
• Thermal Efficiency: Water cooling supports high duty cycles.
• Consumable Life: Designed for Centerfire parts to reduce spatter adhesion.
• Durability: Rugged construction resists mechanical damage.