198377 - Miller XR Gun Hardwire Conversion Liner Kit (.030-.045)

Convert Your XR Gun for Steel with the Miller 198377 Kit

If you own a Miller XR push-pull gun, you likely use it primarily for aluminum welding. These guns are legendary for their ability to feed soft aluminum wire over long distances without tangling. But what happens when a job comes into the shop that requires mild steel or stainless steel welding, and you want to use the reach and control of your XR system? You can't just run steel wire through your aluminum liner—it will chew up the liner and cause feeding issues almost immediately. That is where the Miller 198377 Hardwire Liner Kit comes in.

This kit is the bridge between your aluminum setup and steel capabilities. It includes everything you need to swap out the internals of your gun to handle hard solid wires. The kit features a heavy-duty steel liner that withstands the abrasion of steel and stainless wires, ensuring smooth feeding and consistent arc stability. It is designed to handle the most common wire sizes, specifically .030, .035, and .045 inches. Whether you are doing light fabrication or structural work, this liner kit ensures your wire gets to the puddle without drag or chatter.

Installation is straightforward. The kit is designed to fit Miller XR guns of various lengths, including 15-foot, 25-foot, and 35-foot models. You simply trim the feed cable liner to match your gun's length. The package also includes the essential gun head tube liner (#233998), which is often overlooked but vital for ensuring the wire transitions smoothly through the neck of the gun. By replacing both the cable liner and the head tube liner, you ensure a complete, uninterrupted path for your wire.

Don't limit your equipment to just one metal. With the Miller 198377 Hardwire Liner Kit, you maximize the return on your investment in the XR system. Keep one of these kits on the shelf so you are ready to tackle steel or stainless projects at a moment's notice. Please note, this kit is not designed for wires larger than .045 inches, so stick to the recommended gauges for the best performance.