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Service bulletins for the 2009 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.

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

By type

By component

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
49-142018-01-05. Service bulletin. ENGINE AND ENGINE COOLING. 49-14 - DEF Tank Coolant Valve O-Ring Kit
14-040A2017-11-17. Service bulletin. ENGINE. 14-040_Additional_CLOs Additional Detroit CLOs for the Heavy Duty Engine Platform
1005-142017-11-17. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE. 1005-14 Oil Coolant Module
14-0402017-11-17. Service bulletin. ENGINE. 14-040 Additional Detroit CLOs for the Heavy Duty Engine Platform
sb20802017-11-17. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. sb2080 Australian CST M1400 Isolated Radiator Retrofit
AEO15M12017-06-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ELECTRICAL SYSTEM:SOFTWARE. AEO15M1 GHG14 DD PLATFORM SOFTWARE REPROGRAMMING FOR AUTO ELEVATE
1021-162017-06-01. Service bulletin. ENGINE AND ENGINE COOLING. 1021-16 SPN 110 (MCM)(EPA07EPA07;GHG14), SPN 110 (CPC)(GHG14)
1018-162017-06-01. Service bulletin. ENGINE. 1018-16 SYMPTOM DIAGNOSTICS - NOISE
1017-162017-06-01. Service bulletin. ENGINE. 1017-16 ENGINE MODEL AND SERIAL NUMBER DESIGNATION
16TL202017-05-31. Service bulletin. ENGINE. 16TL20 HEAVY DUTY ENGINE VALVE STEM SEAL INSTALLING DRIFT AND SLEEVE
16TL172017-05-30. Service bulletin. ENGINE. 16TL17 LABEL UPDATE FOR GHG14 TEST AFTERTREATMENT CONTROL MODULE (ACM)
09 09-162016-10-20. Service bulletin. ENGINE. 0909-16 EXCESSIVE OIL CONSUMPTION
09 02-162016-10-20. Service bulletin. ENGINE. 0902-16 SYMPTOM DIAGNOSTICS - BELT COMING OFF, SHREDDING OR MISALIGNMENT
08 09-162016-10-19. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 0809-16 SYMPTOM DIAGNOSTICS : NOISY 1- BOX™ AFTERTREATMENT
SB-49-122012-06-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; FUEL SYSTEM, DIESEL. WESTERN STAR: AROUND THE DIESEL EXHAUST FLUID (DEF) AN EXCESSIVE AMOUNT OF CRYSTAL OR POWDER BUILT UP INDICATES A LEAK CAUSED BY EVAPORATION OF DEF EXPOSED TO AIR AND/OR DAMPNESS. *PE

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