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Service bulletin TIB-43-15

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 id10028329
Published by NHTSA2009-03-25
Manufacturer's numberTIB-43-15
Manufacturer's date2008-11-26
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:DIESEL

NHTSA's summary

KENWORTH TRUCK: EXHAUST GASKETS IN 2007 EMISSIONS COMPLIANT ENGINES. EXHAUST LEAKS BETWEEN THE TURBO AND DIESEL PARTICULATE FILTER (DPF) CAN RESULT IN ENGINE REGENERATION FAULT CODES, WHITE SMOKE AND/OR A SOOT LEAK PATH ON THE PIPE. MODEL AND MODEL YEARS ARE UNKNOWN. *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 KENWORTH

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