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Service bulletin 422

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10009894
Published by NHTSA2004-11-02
Manufacturer's number422
Manufacturer's date2004-08-01
NHTSA componentPOWER TRAIN:AXLE HUBS

NHTSA's summary

HUBS. ARVINMERITOR. MODELS TN & TP TRAILER HUBS. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Transmission and driveline, Axle

Vehicles listed
ARVINMERITOR SKF PHASE IV TRUCK HUB

Listing a model year does not mean every vehicle of it is concerned: the document says which.