0157123029 - ESAB Long TIG Torch Back Cap with O-Ring

Keep Your TIG Torch Running Smooth

There is nothing more frustrating than reaching for your TIG torch and realizing the back cap is cracked, missing, or just won't tighten down properly. The ESAB Long Back Cap (0157123029) is the exact replacement you need to get back under the hood and burning metal. This is the "Long" style cap, which is the most popular choice for a reason: it lets you load in a brand-new, full-length piece of tungsten without having to snap it in half. You get maximum life out of every stick of tungsten, saving you money and hassle in the long run.

Built Tough for Hot Jobs

We all know that TIG torches get hot—really hot. Cheap plastic caps can melt, warp, or get brittle and snap off right when you're in the middle of a critical pass. ESAB builds these caps out of heavy-duty, heat-resistant material that can take the abuse of a real shop environment. Whether you are walking the cup on pipe or doing fine detail work on aluminum, this cap stays cool enough to handle and tough enough to last. The threads are cut clean and deep, so you don't have to worry about stripping out your torch head when you tighten it down.

Stop Gas Leaks Before They Start

Ever have a day where your welds are looking sooty or you're seeing porosity, but you can't figure out why? Check your back cap. If that O-ring is shot or the cap is cracked, you're sucking air right into your gas line. This ESAB replacement comes with a fresh, high-quality O-ring already installed. It seals up tight against the torch body, keeping your Argon pure and your puddles clean. It’s a cheap insurance policy for your weld quality.

The Pro's Choice

Don't waste time with "universal" parts that fit poorly and rattle around. This is a genuine ESAB part, meaning it fits your ESAB torch exactly how it was supposed to. It holds the tungsten rock-steady so you don't get that annoying flicker or drift at the arc. Toss a couple of these in your toolbox or consumables kit. Because when you drop your torch and that cap snaps, you'll be glad you have a fresh one ready to go. Screw it on, gas up, and get back to laying dimes.