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Service bulletins for the 1987 Kenworth W900

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.

2 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
TIB-E0112011-08-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. PACCAR: ENGINEERING STANDARDS HAVE CHANGED AND THERE ARE NOW ENGINES WITH HEAT TREATED BOLTS. *RM
TIB-E-0092011-08-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. PACCAR: A SOFTWARE UPDATE IS CAUSING THE CHECK ENGINE LIGHT TO COME ON. *RM

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.