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Service bulletin 43-11

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 id10025758
Published by NHTSA2008-09-05
Manufacturer's number43-11
Manufacturer's date2008-06-11
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:DIESEL

NHTSA's summary

KENWORTH (PACCAR): THE VERTICAL TAILPIPE(S) DIFFUSER TURNS. AFFECTED: ALL T2000S, T660S, T800S AND W900S CHASSIS BUILT FROM 04/25/08 TO 02/11/08 WITH 2007 ENGINES. *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 T20002006 to 2008
KENWORTH T6602006 to 2008
KENWORTH T8002006 to 2008
KENWORTH W9002006 to 2008

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