KP504 - Lincoln Electric PTW-18/20 Water-Cooled TIG Torch Hook-Up Kit

Get Your TIG Torch Connected Fast

Setting up a water-cooled TIG torch can sometimes feel like a puzzle, especially when you are trying to match up hoses, fittings, and adapters. The Lincoln Electric KP504 Hook-Up Kit takes the headache out of the process for anyone running a PTW-18 or PTW-20 torch. Instead of hunting down individual brass fittings or worrying if your gas hose is compatible with your regulator, this kit gives you everything you need in one box to go from "unboxing" to "welding" without the extra trips to the hardware store.

The kit is all about convenience and reliability. It comes with 12.5 feet of high-quality hose for both your gas and water lines. That extra length is a lifesaver when you are working on a large bench or need to move around a vehicle chassis; you won't feel tethered tightly to your machine. The hoses are built tough to withstand the shop floor environment, resisting cuts and burns that often happen when cables are dragged across concrete or around sharp metal edges. Because it is an official Lincoln product, you know the fittings will thread on smoothly and seal tight, keeping your coolant where it belongs—inside the torch, not on the floor.

One of the most important pieces in this bag is the power cable adapter. If you are upgrading from an air-cooled setup or replacing an old rig, you might not have the right block to connect your torch's power cable to the machine. The KP504 includes this adapter, ensuring you have a solid electrical connection for smooth arc starts and stable welding current. Whether you are setting up a new machine in your garage or outfitting a professional fabrication station, this hook-up kit ensures your water-cooled torch performs exactly how it was designed to, keeping your hand cool and your welds clean.

Don't risk frying your expensive torch head with improper cooling connections. The KP504 is the trusted solution for welders who want to hook up their PTW series torches correctly the first time. It’s a small investment that protects your gear and lets you focus on laying down perfect beads rather than chasing coolant leaks.