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Service bulletin TIB-E-054

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 id10044761
Published by NHTSA2012-07-26
Manufacturer's numberTIB-E-054
Manufacturer's date2012-06-18
NHTSA componentENGINE

NHTSA's summary

KENWORTH: DUE TO LOSS OF POWER AND HIGH FAILURE RATE, THE VALVES WILL BE REPLACED IN THE ENGINE FUEL CONTROL. MODELS T600, T700, T800 AND W900. MODEL YEAR 2011. *PE

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

Engine

Vehicles listed
KENWORTH T6002011
KENWORTH T7002011
KENWORTH T8002011
KENWORTH W9002011

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