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

Generic 41V35 Medium TIG Torch Back Cap

Optimize your TIG welding setup with the Generic 41V35 Medium Back Cap, a premium-quality replacement part designed for 9 Series (air-cooled) and 20 Series (water-cooled) TIG torches. Back caps are a crucial component of the TIG torch head, responsible for sealing the back of the torch and applying the necessary force to the collet to grip the tungsten electrode. This medium-profile cap offers an excellent compromise for welders who find the long cap too obstructive for certain angles but need more tungsten length than a short button cap allows.

Manufactured from durable, high-temperature phenolic resin, this back cap is designed to resist cracking and heat damage during prolonged welding sessions. It features a precision-molded thread that screws easily into standard torch bodies without binding. The integrated O-ring seal is essential for preventing air from being drawn into the shielding gas stream, which is a common cause of weld defects. By ensuring a tight seal, this back cap helps maintain a stable arc and a clean weld puddle.

Application and Usage

The 41V35 is widely used in industries ranging from automotive restoration to industrial pipe welding. It is compatible with all major brands of TIG torches that follow the 9/20 series standard, including Weldcraft, Miller, Lincoln, and CK Worldwide. Its medium size makes it particularly useful in bench work and confined spaces where a long back cap might interfere with the workpiece or fixtures, yet it still accommodates a reasonable length of tungsten electrode.

Features

• Universal Fit: Works seamlessly with WP-9, WP-20, and WP-25 series torches.
• Heat Resistance: Phenolic body withstands reflected heat and high duty cycles.
• Leak Prevention: High-quality O-ring ensures shielding gas efficiency.
• Ergonomic Design: Knurled or textured surface for easy hand-tightening and removal.