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Service bulletins for the 1999 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.

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

By type

By component

Only bulletins with component: Turbocharger or supercharger are shown. Show all

Bulletins, newest first
TIB-E-0552012-08-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. KENWORTH: OIL COLLECTION AT CAC INTAKE PIPE IS CAUSED BY AN IMBALANCE IN TURBOCHARGER PRESSURES. MODELS T660, T800, T700, AND W900. *PE

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