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54N01 - 54N01 Gas Lens Insulator for WP-17, WP-18, WP-26 TIG Torches (2-Pack)

Packaging: 2 in a pack
$3.64/ea $4.82/2 in a pack only $2.41/eaSave 34%

In stock

SKU: GEN54N01 Categories: ,

OVERVIEW

Reliable Insulation for Precision TIG Welding

The 54N01 Gas Lens Insulator is a critical component for any welder utilizing a gas lens setup on 17, 18, or 26 series TIG torches. Unlike standard collet body configurations which use the 18CG insulator, gas lens assemblies require this specialized 54N01 insulator to accommodate the larger diameter of the gas lens collet body. This component serves two primary functions: it provides a necessary electrical barrier between the energized gas lens and the nozzle (cup), and it creates a thermal seal that directs shielding gas through the lens mesh rather than leaking around the threads.

Manufactured from a high-density, high-temperature composite material, this insulator is engineered to withstand the intense radiant heat generated during heavy-duty welding applications. Whether you are operating an air-cooled WP-17 or WP-26 torch, or a water-cooled WP-18 production torch, the 54N01 maintains its structural integrity and dielectric properties under thermal stress. It effectively prevents high-frequency current leakage and arcing to the nozzle, which is particularly important when using alumina ceramic cups in tight spaces.

This generic replacement part is manufactured to strict industry standards, ensuring full compatibility with all major TIG torch brands, including Weldcraft, CK Worldwide, Lincoln Electric, Miller, and Radnor. It fits seamlessly between the torch head and the gas lens, ensuring the nozzle seats concentrically for uniform gas distribution. Proper insulation is vital for maintaining the laminar flow benefits of a gas lens, which include improved weld pool visibility, better gas coverage, and the ability to extend the tungsten electrode further for fillet welds.

Technical Specifications

  • Part Number: 54N01
  • Compatibility: 17, 18, 26 Series Torches (Air & Water Cooled)
  • Function: Gas Lens Insulation & Sealing
  • Material: High-Heat Composite Polymer
  • Packaging: Sold as a package of 2
Additional Information
Packaging Description:2 in a pack, 2 PER EA
Item:Insulator
Brand:Generic
Compatible Torch Series:17 Series, 18 Series, 26 Series
Part Number:54N01
Accessory Type:Gas Lens Insulator
Material:High-Temperature Composite
----- new values below ----
Compatible Torch Series:17 Series, 18 Series, 26 Series
Part Number:54N01
Accessory Type:Gas Lens Insulator
Material:High-Temperature Composite
Item:Insulator
Brand:Generic
Packaging Description:2 PER EA

INCLUDED

  • 2 x 54N01 Gas Lens Insulators

APPLICATIONS

  • TIG Welding (GTAW) with Gas Lens setups
  • Precision fabrication requiring laminar gas flow
  • Stainless steel and titanium welding
  • Pipe welding with extended tungsten stick-out
  • Automotive exhaust and intake fabrication

FAQ

The 54N01 fits all 17, 18, and 26 series TIG torches. This includes common models like the WP-17, WP-18, WP-26, and their equivalents from brands like CK, Weldcraft, and Lincoln.

No, the 54N01 is designed specifically for gas lens collet bodies. If you are using a standard collet body, you need the 18CG insulator instead.

Gas lens collet bodies have a larger diameter than standard collet bodies to accommodate the mesh screen. The 54N01 insulator is shaped to seal this larger body against the torch head.

Yes, it is compatible with CK 17, 18, and 26 series torches. However, it will not fit CK's 2-series torches (like the CK9 or CK20), which use different consumables.

This product is typically sold in a package of 2 insulators.

It is made from a high-temperature composite polymer designed to provide electrical insulation and withstand the radiant heat of the welding arc.

You should replace the insulator if you notice any cracks, charring, or if the threads for the nozzle become stripped or loose. A damaged insulator can cause gas leaks or arcing.

No, stubby gas lenses for 17/18/26 torches typically use a different insulator (often the 18CG20 or similar) because they convert the front end to use 9/20 series consumables. The 54N01 is for standard-length gas lenses.

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