206195 - Miller FasTip Heavy-Duty Gas Diffuser, 1/8 Recess, Brass

Reliable Performance for Heavy-Duty MIG Welding

When you are in the middle of a long weld on thick plate, the last thing you need is a gun component failure. The Miller FasTip Gas Diffuser (206195) is built to handle the heat and stress of professional welding. Designed for use with Miller's popular Roughneck and XR Series guns, this diffuser is the backbone of your gun's front end. It securely holds your FasTip contact tip in place while ensuring your shielding gas flows smoothly and evenly around the weld pool. The 1/8-inch recess provided by this diffuser is a sweet spot for many welders, offering excellent gas coverage without sticking the tip out too far where it might get damaged or short out.

Built for the Grind
Made from heavy-duty brass, this diffuser stands up to the high temperatures generated during 400-amp welding. Brass is an excellent conductor, which helps pull heat away from your contact tip, keeping it cooler and helping it last longer. This means fewer tip changes and more arc-on time. Whether you are running thin 0.023" wire for auto body work or heavy 3/32" wire for structural steel, this diffuser handles it all. It is the versatile workhorse you need in your consumables kit.

Perfect Fit, Every Time
Nothing beats the fit of genuine Miller parts. This OEM diffuser is machined to exact standards, so you don't have to fight to get your nozzle on or worry about loose connections causing erratic arcs. It is designed specifically for the FasTip system, which is known for its ease of use and reliable electrical transfer. If you are running a Roughneck C-Series gun or an XR push-pull gun for aluminum, this is the part you need to keep your welds clean and your machine running smooth.

Ready for Action
Sold in a convenient pack of two, these diffusers are a smart addition to any welder's toolbox. Spatter buildup eventually takes its toll on any front-end part, and having a fresh diffuser ready to go means you can swap it out and get back to burning wire in seconds. Don't let a worn-out diffuser compromise your shield gas coverage—stick with the Miller 206195 for consistent, professional results.