18406 - ESAB 165.0002 Replacement O-Ring Seal

Reliable Gas Sealing with the ESAB 165.0002 O-Ring

Maintain the integrity of your welding setup with the ESAB O-Ring 4.16 x 1.07 mm. This replacement seal, identified by part number 165.0002, is an indispensable spare part for professional welders who understand that consistent shielding gas coverage is the foundation of a quality weld. Designed to fit specific gas fittings within MIG guns and TIG torches, this O-ring prevents the subtle leaks that can compromise weld strength and aesthetics.

Over time, the rubber components in welding torches are subjected to heat, pressure changes, and mechanical wear during torch connection and disconnection. When an O-ring flattens or cracks, it allows shielding gas to escape before it reaches the weld pool, or worse, allows air to be aspirated into the line. Replacing your seals with this genuine-spec 4.16 mm x 1.07 mm O-ring restores the airtight integrity of your equipment. It is particularly useful for the gas nipple seals in Euro-connector systems and other precision internal torch connections.

At Welders Supply, we recommend keeping these small but vital components on hand. A failed O-ring can halt production or result in rework, costing far more than the price of the part itself. This ESAB O-ring offers the correct durometer and dimensional accuracy to snap perfectly into place, providing a long-lasting seal that lets you focus on the arc, not the equipment.

Features and Benefits

• Exact Fit: Dimensionally accurate (4.16mm ID) for specific torch ports.
• Leak Prevention: Stops gas wastage and ensures full shielding coverage.
• Durable Material: Resists compression set and wear.
• Easy Installation: Simple to replace during routine torch maintenance.