Esab 57Y04 Short Tig Torch Cap with O-ring HW-17 HW-18 HW-26

Product Description

The ESAB 57Y04 is a short TIG torch cap with an integrated O-ring, designed to seal the back end of compatible TIG torch bodies. The cap retains the tungsten electrode at the rear of the torch head and helps maintain a proper gas-tight seal during welding. Its short profile is suited for tight-access welds where a standard-length back cap would restrict torch movement. Welders and HVAC/industrial fabricators working with TIG processes install this component as a routine consumable replacement when caps become worn, cracked, or lose their seal integrity.

This cap is intended for use with HW-17, HW-18, and HW-26 series TIG torches, which are widely used in light-duty to medium-duty TIG welding applications across fabrication shops, mechanical contractors, and maintenance trades. It is a direct-fit replacement part and is sold individually with a minimum order quantity of 2 units, making it practical to stock as a consumable spare for service kits.

Key Features

• Short profile allows use in restricted or tight-clearance weld positions
• Integrated O-ring provides a gas-tight seal at the torch body rear
• Compatible with HW-17, HW-18, and HW-26 TIG torch series
• Lightweight construction at 0.025 pounds for minimal torch handling fatigue
• Direct OEM-style replacement for routine consumable maintenance

Compatibility

Designed for use with HW-17, HW-18, and HW-26 series TIG torches as stated by the manufacturer.

Installation Notes

Installation is performed by qualified welders or welding equipment technicians. Before replacing the torch cap, disconnect the torch from the power source and allow the torch body to cool completely. Thread the cap onto the rear of the torch body by hand until snug, taking care not to cross-thread or overtighten, which can damage the O-ring or torch body threads. Inspect the O-ring for damage before installation and replace if deformed to ensure an effective shielding gas seal.