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Service bulletins for the 2012 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.

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

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Bulletins, newest first
14-0392017-11-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 14-039 New Detroit Standard Diagnostic Times
14-0382017-11-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 14-038 Additional Detroit Standard Repair Times
sb542872017-11-17. Service bulletin. ELECTRICAL SYSTEM. sb54287 Powernet Distribution Box Fuse Retention on the Keep-Alive
sbw54602017-11-17. Service bulletin. ELECTRICAL SYSTEM. sbw5460 Powernet Distribution Box Fuse Retention on the Keep-Alive
sb20802017-11-17. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. sb2080 Australian CST M1400 Isolated Radiator Retrofit
14TS192017-10-21. Service bulletin. FUEL SYSTEM, DIESEL. 14TS19Rev DD Platform High Pressure Fuel Lines
1108-142017-10-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. 1108-14 SPN 636 (MCM) (EPA07;EPA10;GHG14)
1109-142017-10-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. 1109-14 Diagnostic Tes
1104-142017-10-21. Service bulletin. FUEL SYSTEM, DIESEL. 1104-14 Metal in the Fuel System
1102-142017-10-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. 1102-14 DD13 Cylinder Head R&R
1101-142017-10-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. 1101-14 DD15 and DD16 Cylinder Head
1105-142017-10-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL). 1105-14 Flywheel, Ring Gear and Flywheel Housing
1110-142017-10-21. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES. 1110-14 EPA10 DOC Inlet Pressure Sensor
18SP7082017-10-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. 18SP708Rev EPA07 10 Three-Filter Fuel
18SP7112017-10-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. 18SP711 DD15 and DD16 Axial Power Turbine Bracket Ki
sbw54622017-10-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. sbw5462 Aftertreatment Harness Modification
14TS262017-10-15. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE. 14TS26 Replacement of the High Pressure Fuel Pump Camshaft Oil Seal
14TS252017-10-15. Service bulletin. FUEL SYSTEM, DIESEL. 14TS25 EPA10 and GHG14 Diesel Particulate Filter (DPF) Compatibility
910-142017-10-15. Service bulletin. FUEL SYSTEM, DIESEL. 910-14 Installation of the High Pressure Fuel Rail Feed Lines - Two-Filter System
918-142017-10-15. Service bulletin. FUEL SYSTEM, DIESEL. 918-14 Removal and Installation and Inspection of the Fuel Cooler Delete Bypass Plate - Two Filter System
916-142017-10-15. Service bulletin. FUEL SYSTEM, DIESEL; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 916-14 Fuel Cooler Leak Test Procedure - Two-Filter Fuel System
912-142017-10-15. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE. 912-14 Coolant in Oil
913-142017-10-15. Service bulletin. ENGINE. 913-14 Checking for Poor Engine Brake Performance
905-142017-10-15. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING. 905-14 Coolant Level Circuit Failed
908-142017-10-15. Service bulletin. ENGINE; POWER TRAIN. 908-14 908-14 EGR Differential Pressure Failed (High Box)

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