Service bulletins for the 2006 Western Star 4900
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.
176 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Cooling system are shown. Show all
| sbw2018 | 2018-06-25. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. sbw2018 Western Star 4800 and 4900 Radiator Mounting |
|---|---|
| sbw2023 | 2018-03-05. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. sbw2023 Modine Copper/Brass Bolted Downflow Radiator Rebuilding |
| sb2080 | 2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. sb2080 Australian CST M1400 Isolated Radiator Retrofit |
| SF383A | 2008-03-19. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. FREIGHTLINER - MODINE RADIATOR MOUNTING JOINTS. MODELS AFFECTED: SPECIFIC FREIGHTLINER CENTURY CLASS S/T AND COLUMBIA VEHICLES, STERLING L-LINE VEHICLES AND WESTERN STAR 4900 VEHICLES MANUFACTURED BETWEEN AUG. 28, 2006 AND JAN. 29, 2007. *NJ |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.