Victor 1407-0178 Replacement O-Ring for 300 Series & Heating Nozzles

Keep Your Torch Running Safely

A leaky torch isn't just an annoyance; it's a safety hazard and a drag on your productivity. The Victor 1407-0178 O-Ring is the exact part you need to fix those nagging leaks in your Victor 300 Series setup. Whether you are swapping out cutting attachments or changing heating nozzles, the O-ring is the unsung hero that keeps the gas flowing where it should—out the tip, not down the handle. Over time, O-rings dry out, crack, or get compressed, leading to poor flame control and wasted gas. Swapping them out is a quick, cheap fix that restores your torch to like-new performance.

This O-ring is designed to fit a variety of common Victor gear. If you are running a 300 Series handle with weld tips or cutting attachments, this is the seal that sits between the components. It also fits the MFA and MFN multi-flame heating nozzles, as well as the W, WB, and WHB series. Don't try to match it up with a generic O-ring from a hardware store box; those generic rings often aren't sized correctly for the specific grooves in Victor equipment, and they may not be made of material that can handle acetylene, propane, or oxygen safely. Using the correct .482" ID x .614" OD Victor part ensures a snug fit every time.

Keep a few of these 1407-0178 O-rings in your toolbox or shop drawer. When you're in the middle of a job and you notice a seal is damaged during a tip change, having a fresh replacement on hand means you're back to work in minutes. It’s a small part that makes a big difference in the quality of your flame and the safety of your shop. Trust genuine Victor parts to keep your rig tight and your welds clean.