2064117 - ESAB Replacement O-Ring .551 ID x .070 CS 70A

Stop Leaks and Maintain Shielding Gas Coverage

Is your welder or torch acting up? Often, the culprit behind erratic arc performance, porosity in your welds, or coolant leaks is a simple, worn-out O-ring. The ESAB 2064117 O-Ring is the exact replacement part you need to get your gear back in top shape. Over time, O-rings can dry out, crack, or become compressed, losing their ability to hold a seal. When this happens in a gas line, you lose expensive shielding gas and risk contaminating your weld pool. If it happens in a coolant line, you risk overheating your torch. Swapping out old seals is a quick, inexpensive fix that saves you from major headaches down the road.

This specific O-ring measures .551 inches on the inside with a thickness of .070 inches. It is built with a 70A hardness rating, which is the industry standard for a seal that needs to be tough but pliable. It fits perfectly into the grooves designed by ESAB, ensuring a tight, leak-free fit that you can trust. Whether you are rebuilding a torch, fixing a regulator connection, or servicing the internal plumbing of your power source, using the correct size is non-negotiable. A "close enough" O-ring from a hardware store might fit initially but can fail under the heat and pressure of a welding shop.

Don't let a ten-cent seal cause a thousand-dollar problem. Keep a few of these ESAB 2064117 O-rings in your maintenance kit. Installation is straightforward: simply remove the old, damaged ring (be careful not to scratch the metal groove), apply a tiny amount of compatible lubricant if required, and slide the new ring into place. It’s one of the easiest preventative maintenance tasks you can perform to ensure your welding operations run smoothly and efficiently.

Why Replace Your O-Rings?

• Prevent Gas Waste: A tight seal stops shielding gas from leaking out before it reaches the nozzle.
• Protect Weld Quality: Eliminates air aspiration that causes porosity and oxidation.
• Avoid Messes: Keeps coolant where it belongs—inside the lines, not on your floor.
• Extend Equipment Life: Prevents contaminants from entering sensitive machine parts.