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20402187 - Thermal Arc Fabricator Front MIG Power Pin Receptor Kit

Packaging: pack of 1
$49.18/EA $31.91/pack of 1 only $31.91/EASave 35%

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OVERVIEW

Restore Optimal Conductivity with the ESAB 20402187 Front Power Connection Kit

The ESAB 20402187 Front Power Connection Kit is a critical replacement assembly designed specifically for the Thermal Arc and ESAB Fabricator series of multi-process welding machines. In any MIG welding setup, the interface between the power source and the welding gun is a high-stress point, subject to significant thermal cycling, mechanical wear, and electrical load. Over time, the brass power block can become pitted or the threads worn, leading to increased electrical resistance, voltage drop, and unstable arc performance. This OEM kit addresses these issues directly by providing a complete, factory-spec replacement for the front panel receptacle.

Engineered to meet the precise tolerances of the Fabricator 181i, 211i, and 252i models, this kit ensures that the welding current is transferred efficiently from the machine's inverter to the MIG gun cable. The core of the assembly is a high-grade brass connection block, chosen for its superior electrical conductivity and resistance to oxidation. The kit also includes the necessary dielectric insulators—crucial components that isolate the electrically

Additional Information
Packaging Description:1 Per Ea, pack of 1
Product Type:Power Connection Kit, Replacement Part
Compatible Models:Fabricator 181i, Fabricator 211i, Fabricator 252i
Connection Type:Tweco Style MIG Receptacle
Material:Brass, High-Temp Plastic
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Compatible Models:Fabricator 181i, Fabricator 211i, Fabricator 252i
Connection Type:Tweco Style MIG Receptacle
Material:Brass, High-Temp Plastic
Brand:ESAB, Thermal Arc
Product Type:Power Connection Kit, Replacement Part
Packaging Description:1 Per Ea

INCLUDED

  • Brass Power Block Assembly
  • Front and Rear Insulators
  • Gas Fitting Connection
  • Mounting Hardware/Screws
  • Installation Instructions

APPLICATIONS

  • Repairing worn or damaged MIG gun receptacles on Thermal Arc Fabricator 181i, 211i, and 252i welders.
  • Replacing internal power blocks that have suffered from arcing or thread damage.
  • Restoring proper gas sealing and electrical conductivity at the machine front panel.
  • General maintenance of ESAB/Thermal Arc multi-process machines.

FAQ

This kit is designed for the Thermal Arc / ESAB Fabricator series, specifically the Fabricator 181i, 211i, and 252i multi-process welders.

Yes, the kit includes the gas fitting necessary to connect the internal gas line to the MIG gun receptacle.

Yes, this is a genuine OEM part manufactured by ESAB (formerly Thermal Arc/Tweco), ensuring perfect fitment and safety.

Excessive heat at the connection usually indicates high resistance due to a loose or worn connection. Replacing the power block with this kit often solves that issue.

You will typically need standard hand tools, such as wrenches and screwdrivers, to remove the machine cover and swap the front panel assembly.

No, this is a direct replacement for the stock Tweco-style connection found on the Fabricator series. It maintains the original gun compatibility.

Yes, the kit comes with the necessary front and rear insulating washers/bushings to electrically isolate the power block from the chassis.

This part is specific to the chassis design of the Thermal Arc/ESAB Fabricator series and is not intended as a universal adapter for other brands.