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Service bulletin 4234

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 id10017058
Published by NHTSA2005-10-21
Manufacturer's number4234
Manufacturer's date2005-08-31
NHTSA componentPOWER TRAIN

NHTSA's summary

ISL ENGINES AND TRANSMISSION COOLER PLUMBING. POWER STEERING COOLER HOSES AND TRANSMISSION COOLER HOSES MAY BE INCORRECTLY PLUMBED, INCLUDING A TEMPORARY CAP LEFT IN PLACE ON AN ENGINE COOLANT FITTING. KENWORTH 32 T800 AND W900 BUILT FROM 02/04/04-07/18/05 WITH CUMMINS ISL ENGINES AND ALLISON AUTOMATIC TRANSMISSIONS. *SC

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.