Service bulletins for the 2008 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.
323 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Engine are shown. Show all
| 15-009 | 2018-03-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. 15-009 New Detroit Standard Diagnostic Times |
|---|---|
| 14TL2 | 2018-02-12. Service bulletin. ENGINE. 14TL2 DD Platform Engine Stand Adapter W060589023100 |
| 14TS18 | 2018-02-12. Service bulletin. ENGINE. 14TS18 GHG14 DD Engine EGR System Fault Code |
| 713-14 | 2018-02-12. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. 713-14 Symptom Diagnostics - Combustion Gas in Coolant |
| 715-14 | 2018-02-12. Service bulletin. ENGINE AND ENGINE COOLING. 715-14 Symptom Diagnostics - Coolant Los |
| 714-14 | 2018-02-12. Service bulletin. ENGINE. 714-14 Symptom Diagnostics - Low Engine Compression |
| 712-14 | 2018-02-12. Service bulletin. ENGINE AND ENGINE COOLING. 712-14 Engine Coolant Temperature |
| 16TS8 | 2018-02-12. Service bulletin. ENGINE AND ENGINE COOLING. 16TS8 DD13 Cylinder Head and Cylinder Head Gasket Change |
| 0303-16 | 2018-02-12. Service bulletin. ENGINE AND ENGINE COOLING. Hydrocarbon Doser Coolant Lines |
| sbw4910 | 2018-01-16. Service bulletin. ENGINE. sbw4910 Gentech DEF Coolant-Flow Solenoid, Testing and Replacement |
| 15-028A | 2018-01-05. Service bulletin. ENGINE AND ENGINE COOLING. 15-028 New Detroit Coolant Line SRTs |
| 901-15 | 2018-01-05. Service bulletin. ENGINE. 901-15 Oil Breather Vent |
| 0228-14 | 2018-01-05. Service bulletin. ENGINE. 0228-14 Engine Oil Leaks - Oil Dye Method |
| 0229-14 | 2018-01-05. Service bulletin. ENGINE. 0229-14 Symptom Based Diagnostics - Oil Separator |
| 49-14 | 2018-01-05. Service bulletin. ENGINE AND ENGINE COOLING. 49-14 - DEF Tank Coolant Valve O-Ring Kit |
| 804-14 | 2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING. 804-14 FMI 16, 18 Intake Manifold Pressure Too high and low (Restricted Mode) |
| 803-14 | 2017-11-17. Service bulletin. ENGINE. 803-14 FMI 16,18: Intake Manifold Pressure Too High and Low |
| 14-040A | 2017-11-17. Service bulletin. ENGINE. 14-040_Additional_CLOs Additional Detroit CLOs for the Heavy Duty Engine Platform |
| 1005-14 | 2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE. 1005-14 Oil Coolant Module |
| 14-040 | 2017-11-17. Service bulletin. ENGINE. 14-040 Additional Detroit CLOs for the Heavy Duty Engine Platform |
| sb2080 | 2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. sb2080 Australian CST M1400 Isolated Radiator Retrofit |
| 14TS26 | 2017-10-15. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE. 14TS26 Replacement of the High Pressure Fuel Pump Camshaft Oil Seal |
| 912-14 | 2017-10-15. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE. 912-14 Coolant in Oil |
| 913-14 | 2017-10-15. Service bulletin. ENGINE. 913-14 Checking for Poor Engine Brake Performance |
| 905-14 | 2017-10-15. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING. 905-14 Coolant Level Circuit Failed |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.