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41V35 - 41V35 Medium Back Cap for 9 and 20 Series TIG Torches

Packaging: 2 in a pack
$2.88/ea $3.80/2 in a pack only $1.90/eaSave 34%

In stock

OVERVIEW

Reliable Medium Back Cap for TIG Welding

The Generic 41V35 Medium Back Cap is an essential consumable for welders using the popular 9 and 20 series TIG torches. Designed to meet standard industry specifications, this back cap serves as a direct replacement for the Weldcraft 41V35 and compatible models. It plays a critical role in the TIG torch assembly by applying pressure to the collet, which in turn secures the tungsten electrode in place. This medium-sized variant is often preferred by welders who need a balance between the compactness of a short cap and the electrode capacity of a long cap.

Constructed from high-quality, heat-resistant phenolic material, this back cap is built to withstand the thermal stresses of continuous welding operations. Whether you are operating an air-cooled WP-9 torch or a water-cooled WP-20 torch, this component maintains its structural integrity and prevents thread deformation. The inclusion of a high-quality O-ring is vital for maintaining the shielding gas envelope; it creates a positive seal against the torch body to prevent atmospheric contamination (porosity) in your welds.

Compatibility and Performance

This back cap is engineered for versatility, fitting a wide range of TIG torch models including the WP-9, WP-20, WP-25, and their equivalents (HW-20, HW-9). It is rated for the full amperage range of these torches, supporting up to 250 amps in water-cooled applications. The medium length allows for the use of tungsten electrodes that have been sharpened multiple times but are not yet short enough to require a short back cap, maximizing the lifespan of your expensive tungsten consumables.

Key Benefits

  • Cost-Effective Replacement: Provides OEM-level performance at a fraction of the cost.
  • Secure Fit: Precision threading ensures the cap screws in smoothly and holds the collet tight.
  • Gas Integrity: Comes with a durable O-ring to prevent gas leaks and ensure clean welds.
  • Versatile Use: Ideal for general fabrication, pipe welding, and precision aerospace work where 9/20 torches are standard.
Additional Information
Item:Back Cap Medium
Brand:Generic
Packaging Description:2 PER EA
Torch Model:WP-9, WP-20, HW-20, HW-20A
Accessory Type:Back cap
Material:Phenolic
Cooling Method:Air Cooled, Water Cooled

INCLUDED

  • 2x Medium Back Caps (41V35)
  • Installed O-Rings

APPLICATIONS

  • TIG Welding (GTAW)
  • Precision Fabrication
  • Automotive Repair
  • Aerospace Welding
  • Pipe and Tube Welding

FAQ

The 41V35 medium back cap is compatible with 9 Series (air-cooled) and 20 Series (water-cooled) TIG torches, including models WP-9, WP-20, WP-25, and their equivalents from various brands.

Yes, the 41V35 back cap comes with a pre-installed O-ring to ensure a gas-tight seal with the torch body.

This back cap is made from high-temperature phenolic material, which is designed to withstand the heat generated during TIG welding without melting or deforming.

A medium back cap is shorter than a long cap, allowing for better access in tighter spaces, while still accommodating a longer piece of tungsten than a short back cap.

This is a high-quality generic replacement part that meets or exceeds the specifications of the original Weldcraft 41V35 part.

This product is typically sold in packs of 2, but please verify the specific quantity listed on the product page at the time of purchase.

No, the 41V35 fits 9 and 20 series torches. For 17, 18, and 26 series torches, you would typically need the 57Y02 (long), 300M (medium), or 57Y04 (short) back caps.