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64-8211T - Lightning MIG Gun Power Pin - Tweco #4 Connection

Packaging: 1 per each
$22.67/ea $16.08/1 per each only $16.08/eaSave 29%

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SKU: ATT64-8211T Categories: ,

OVERVIEW

American Weldquip 64-8211T Power Pin for Lightning MIG Guns

The American Weldquip 64-8211T Power Pin is a critical component designed to interface Lightning series MIG guns with wire feeders utilizing a Tweco #4 style connection. In the world of industrial welding, the integrity of the connection between the power source/feeder and the torch is paramount. This power pin serves as the bridge, conducting high-amperage welding current, shielding gas, and the welding wire itself from the machine to the gun cable. Manufactured to precise tolerances, this pin ensures that there is minimal electrical resistance at the connection point, which is essential for maintaining a stable arc and preventing overheating at the feeder interface.

Constructed from a high-grade brass alloy, the 64-8211T offers superior electrical conductivity and mechanical durability. The brass material is resistant to corrosion and deformation, ensuring that the pin maintains a tight fit even after repeated connections and disconnections. The pin features precision-machined threads that screw securely into the rear block of Lightning MIG guns, creating a gas-tight seal that prevents shielding gas leaks—a common cause of porosity in welds. Additionally, the pin comes equipped with high-quality O-rings that further seal the gas passage when inserted into the feeder's power block.

This specific model is engineered for the "Tweco #4" standard, which is one of the most widely used connection types in the North American welding industry. This allows fabricators to utilize the ergonomic and durable Lightning MIG guns on a vast array of power sources and feeders that are set up for Tweco-style torches. Whether you are replacing a worn-out pin or converting a gun to fit a different machine, the 64-8211T provides a reliable, OEM-quality solution. Proper maintenance of this component, including regular inspection of the O-rings and contact surfaces, will prolong the life of both the gun and the wire feeder.

Key Technical Specifications:

  • Compatibility: American Weldquip Lightning Series MIG Guns
  • Connection Style: Tweco #4 (Standard)
  • Material: High-Conductivity Brass Alloy
  • Gas Sealing: Integrated O-Rings
  • Installation: Threaded rear connection
Additional Information
Packaging Description:1 per each
Item:n/a, Powerpin
Back End:Tweco
Fits Which Model:Lightning
Product Type:MIG Gun Power Pin
Connection Type:Tweco #4
Material:Brass Alloy
Compatible Brand/Model:Lightning MIG Guns
----- new values below ----
Product Type:MIG Gun Power Pin
Connection Type:Tweco #4
Material:Brass Alloy
Compatible Brand/Model:Lightning MIG Guns
Item:Powerpin
Brand:American Weldquip, Lightning
Back End:Tweco
Fits Which Model:Lightning

INCLUDED

  • 1 x 64-8211T Power Pin (Tweco #4 Style)
  • Installed O-Rings

APPLICATIONS

  • General Fabrication shops using Tweco-style feeders
  • Automotive repair and manufacturing
  • Heavy equipment repair
  • Structural steel welding
  • Shipbuilding and marine applications
  • Any application utilizing Lightning MIG guns with Tweco #4 feeders

FAQ

The 64-8211T is designed specifically for American Weldquip's Lightning series of MIG guns.

This power pin converts the gun to fit a Tweco #4 style wire feeder connection, which is a common industry standard.

Yes, the 64-8211T comes with the necessary O-rings installed to ensure a proper gas seal.

Signs of a worn power pin include excessive heat at the feeder connection, voltage drops, erratic wire feeding, or visible damage to the brass or O-rings.

Yes, this is a genuine American Weldquip part designed for their Lightning MIG gun platform.

Yes, if you have a Lightning gun currently set up for a different feeder, you can unscrew the existing pin and install the 64-8211T to make it compatible with Tweco #4 feeders.

The pin is manufactured from a high-conductivity brass alloy to ensure efficient current transfer and durability.

Generally, the precision threads and design provide a sufficient seal, but checking the manufacturer's specific manual for the Lightning gun is recommended. Ensure the O-rings are lubricated and intact.