WenmarOpen by Wenmar Pro

Service bulletins for the 2019 Western Star 6900

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.

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

By type

By component

Only bulletins with component: Exhaust and emissions are shown. Show all

Bulletins, newest first
MY18M42018-12-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE. MY18M4_Bulletin_02-MAY-2018 Field Service Campaign D18M4
0508-182018-12-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 0508-18 Aftertreatment
0501-182018-12-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 0501-18 Aftertreatment Control Module (ACM)
0404-182018-10-01. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 0404-18 GHG17 DD8 - Aftertreatment Systems - Diesel Particulate Filter End Cap

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