
Don't let a cracked or worn-out insulator ruin your weld or damage your torch. The Weldcraft 9-4 Back Cap Insulator is the exact replacement part you need for your WP-9, WP-20, or WP-25 TIG torch. This small but mighty part sits between your torch body and the back cap, ensuring that the electricity stays where it belongs—at the tungsten—and that your shielding gas doesn't leak out the back. A compromised insulator can lead to erratic arcs, poor gas coverage, and even shocks, so it is always smart to keep fresh ones in your kit.
When it comes to TIG consumables, fitment matters. These are genuine Weldcraft parts, meaning they are built to the exact standards of your original equipment. No filing, no forcing, just a perfect seal every time. Whether you are running a water-cooled WP-20 in a production shop or an air-cooled WP-9 in your garage, these insulators handle the heat and keep you welding.
We know that small parts have a habit of disappearing or breaking right when you need them most. That is why these are sold in a convenient 2-pack. Swap one out now and keep the second one in your toolbox for backup. At Welders Supply, we make it easy to keep your equipment running smoothly with high-quality consumables at the best prices.
| Additional Information |
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| Brand:Weldcraft |
| Item:Insulator |
| Packaging Description:2-per-ea |
| Compatible Series:WP-9, WP-20, WP-25 |
| Part Type:Back Cap Insulator |