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Meritor · Hardware & Fasteners
1199K3859
In stock · ships from Knoxville
A small, hardened steel set screw that threads into the axle nut retainer to lock the wheel bearing adjustment nut in place, preventing it from loosening during operation.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
We don't publish fitment for this part yet. Rather than guess, get it confirmed against your truck in under a minute.
It is a critical safety component typically replaced during wheel‑end service if the old screw is worn, cross‑threaded, or missing. Ensures proper bearing preload retention and safe wheel installation on heavy‑duty trucks and trailers.
Part Number: 1199K3859
SET SCREW FOR AXLE NUT
Unit: ea
Dealer: Knox Trailers
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