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Service bulletin 22TR04

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 id10009718
Published by NHTSA2004-10-18
Manufacturer's number22TR04
Manufacturer's date2004-07-01
NHTSA componentPOWER TRAIN

NHTSA's summary

RETARDER CONTROL VALVE BODY AND COOLER LINE MANIFOLD CHANGES. ALLISON 5000, 6000, 8000, 9000 SERIES TRANSMISSIONS. *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

Vehicles listed
UNKNOWN UNKNOWN

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