Miller Coolant Fitting 3/8 Barb x 5/8-18 Female

Keep Your Cool with Genuine Miller Parts

When you are running high-amperage TIG or heavy-duty MIG applications, your water-cooling system is the lifeline of your torch. A simple leak or a broken fitting can bring production to a grinding halt and potentially damage expensive torch cables. The Miller 235499 Coolant Fitting is the exact replacement part you need to repair damaged connections or build out new cooling lines for your Miller equipment. Designed to connect standard 3/8-inch coolant hoses to the 5/8-18 outlets found on many water coolers and machine fronts, this fitting ensures your coolant gets where it needs to go without ending up on the shop floor.

Why risk using generic hardware store fittings that might not thread correctly or could corrode in contact with welding coolants? This OEM Miller part is manufactured to precise tolerances, ensuring the 5/8-18 threads spin on smoothly and seat firmly against the sealing surface. The barbed end is specifically shaped to hold 3/8-inch tubing tight, giving you peace of mind when the pressure is on. Whether you are fixing a cracked fitting on an old Coolmate or setting up a new water-cooled torch assembly, having the right adapter makes the job quick and painless.

Installation is straightforward for any welder or maintenance tech. Simply slide your 3/8-inch coolant hose over the barbed end and secure it with a hose clamp or crimp ferrule. Then, thread the female swivel nut onto your machine or cooler's outlet. It is a small part, but it plays a huge role in protecting your equipment from thermal failure. Keep a few of these in your maintenance kit to ensure that a worn-out fitting never stops you from laying down a perfect bead.