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Lincoln Electric KP55H Heavy Duty Gas Diffuser for 3/32-1/8 in Wire

$27.48/EA $17.69/1 Per Ea only $17.69/EASave 36%

Usually ships within 3-5 business days

OVERVIEW

Reliable Performance for Heavy Fabrication

When you are laying down serious metal with thick wire, you need consumables that can take the heat. The Lincoln Electric KP55H Gas Diffuser is built for the toughest jobs, handling wire sizes from 3/32 inch up to 1/8 inch. Whether you are welding structural steel, heavy machinery, or thick plate, this diffuser ensures your MIG gun performs consistently, hour after hour.

A gas diffuser does more than just hold your contact tip; it is the heart of your shielding gas coverage. The KP55H is designed to smooth out the flow of gas as it exits the nozzle, creating a protective envelope around your weld. This means less spatter, fewer defects, and cleaner welds. Because it is a genuine Lincoln Electric part, you can trust the fit and finish to be perfect every time, saving you from the frustration of cross-threading or loose connections.

Don't let a worn-out diffuser compromise your weld quality. Over time, heat cycles and spatter can clog gas ports and degrade conductivity. Swapping in a fresh KP55H restores your gun's efficiency, ensuring smooth wire feeding and a stable arc. Keep your heavy-duty rig running at peak performance with the right parts for the job.

Additional Information
Brand:Lincoln Electric
Packaging Description:1 Per Ea
Product Type:Gas Diffuser
Wire Diameter Compatibility:3/32 in (2.4 mm), 1/8 in (3.2 mm)
Compatible Process:MIG (GMAW), Flux-Cored (FCAW)
Material:Brass

INCLUDED

  • 1x KP55H Gas Diffuser

APPLICATIONS

  • Heavy structural steel fabrication
  • Shipbuilding and marine construction
  • Heavy equipment manufacturing and repair
  • Industrial pipe welding
  • High-deposition MIG and Flux-Cored welding

FAQ

The KP55H is designed for large diameter wires ranging from 3/32 inch (2.4 mm) to 1/8 inch (3.2 mm).

It transfers electrical current to the contact tip and disperses shielding gas evenly around the weld pool.

Yes, this is a genuine OEM part manufactured by Lincoln Electric.

Replace the diffuser if the gas holes are clogged with spatter that cannot be removed, if the threads are stripped, or if the part shows signs of excessive heat damage or deformation.

While it physically fits the gun, it is optimized for 3/32" to 1/8" wires. Using it for significantly smaller wires may not provide the optimal gas coverage or support intended for those applications.

It is typically machined from high-quality brass or copper alloy to ensure good electrical conductivity and heat resistance.

No, despite the confusing product title, the KP55H is the gas diffuser only. The liner is sold separately.