Fasteners Drivetrain Fastener Kits

Access

BRACE FOR ROOFTOP ATTACHMENTS

$49.36

SKU: A001 4004864

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Stemco 400-4864 is a Zip-Torq axle fastener designed for Mack steer axles. It features a simplified, fully unitized design that allows for installation without special tooling, eliminating the need for clips, keepers, snap rings, or screws. This part has a 2"-12 thread size and requires a 2-7/8-inch six-point socket for installation. The outer bearing cone/cup is a 555S/552A.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandAccess
Part NumberA001 4004864

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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