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4 3/8" Locknut Socket 8 Pt - American Forge & Foundry

Part #: 18517

The American Forge & Foundry (AFF) 18517 4 3/8" Locknut Socket is a robust 8-point tool engineered for professional technicians performing heavy-duty axle, hub, and wheel-end service. This specialized socket ensures a precise, non-slip fit on large 8-point locknuts, enabling controlled high-torque application and minimizing the risk of component damage. It is designed for use with a 3/4-inch square-drive manual tools, such as a ratchet or breaker bar.

Key Features

  • Precision 4 3/8" 8-Point Design: This 4 3/8 8 point socket provides positive engagement with corresponding locknuts, significantly reducing the chance of rounding under heavy load.
  • Heavy-Duty Construction: Built from high-strength, tensile steel, this socket is designed to withstand the rigorous demands of commercial shops, fleet garages, and industrial maintenance environments, offering exceptional durability and impact resistance for consistent performance.
  • Secure, Non-Slip Fit: The precision-machined opening ensures full contact on the nut flats, facilitating consistent torque transfer for accurate tightening or efficient removal of locknuts.
  • Professional-Grade Manufacturing: Produced by American Forge & Foundry (AFF), this tool guarantees reliability and high quality for repeated professional use in high-volume applications. It features a powder-coat finish for rust protection and laser-etched sizing for easy identification.

Applications

This specialized 4 3/8 locknut socket is crucial for wheel bearing, hub, and wheel-end service on Class 6–8 trucks, buses, and trailers. It functions effectively as a 4 3/8 axle nut socket for the removal and installation of wheel bearings, axle nuts, and spindle nuts in fleet maintenance and over-the-road truck shops. Additionally, it is suitable for heavy equipment and industrial machinery utilizing 4 3/8" 8-point locknuts in driveline, suspension, and wheel-end repairs.

Specifications

  • Model: 18517
  • Socket Size: 4 3/8"
  • Point Configuration: 8-point
  • Drive Size: 3/4"
  • Dimensions: 6" x 6" x 4"
  • Weight: 4 lbs
  • Manufacturer: American Forge & Foundry (AFF)
Only 1 left in stock - order soon

$55.13

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
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This product was added to our catalog on Friday 06 July, 2012.

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