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Stemco · Hardware & Fasteners
447-4743
In stock · ships from Knoxville
The Stemco 447-4743 is a Pro-Torq spindle nut used on heavy-duty truck and trailer axles to secure the wheel bearing assembly.
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Requires outer bearing cups/cones HM212049/HM212011 and a 3-3/4" 8-point socket (OTC #1925).
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It provides a precise torque setting to maintain proper bearing preload, reducing the risk of premature wear or wheel-end failure. This nut is typically replaced during wheel seal or bearing service to ensure reliable wheel retention. It fits axles with a 2-5/8"-16 thread and requires a 3-3/4" 8-point socket for installation.
Part Number: 447-4743
PRO TORQUE NUT
Unit: ea
Dealer: Knox Trailers
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