Service bulletins for the 2013 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.
660 on file from NHTSA, as of 2026-10-19.
By type
By component
By topic
| FSC-SF-498-A | 2014-07-03. Service bulletin. STRUCTURE:BODY:HOOD:HINGE AND ATTACHMENTS; STRUCTURE:BODY:HOOD. DAIMLER TRUCKS: DURING ENGINE ROLL, INSIDE OF HOOD, AND BETWEEN HOOD TILT-ASSIST MOUNTING BRACKETS, IS AN INTERFERENCE DUE TO BRACKETS ARE DIFFERENT IN SIZE. *PE |
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| WSB-49-11 | 2014-02-13. Service bulletin. FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY. WESTERN STAR: WHEN TRUCK SITS, FOR ANY EXTENDED PERIOD, WITH A DIESEL EXHAUST FLUID (DEF) SYSTEM, IT WOULD CRYSTALLIZED, IN THE TANK, AROUND FLOAT, ON DEF LEVEL SENDING UNIT TUBE AND NEEDS TO BE CLEANED. *PE |
| SB-35-11 | 2014-01-24. Service bulletin. EQUIPMENT. WESTERN STAR: CONMET RECOMMENDS REPLACING THE BEARING SPACER WHEN THE HUB IS REMOVED. MODEL 4700, 4900, 6900. NO YEARS LISTED. *PE |
| SB-33-04 | 2014-01-23. Service bulletin. SUSPENSION:FRONT:WHEEL BEARING. WESTERN STAR: IT HAS BEEN RECOMMENDED, BY CONMET, THAT THE BEARING SPACER BE REPLACED WITH NEW ONE WHEN HUB IS REMOVED. MODEL 4700, 4900, 6900.. NO YEARS LISTED. *PE |
| SF-483-A | 2013-08-28. Service bulletin. PARKING BRAKE. DAIMLER TRUCKS: ON CERTAIN TRUCKS, ENGINE MAY NOT RECEIVE COMPLETE PARK BRAKE ENGAGED INPUT SIGNAL FROM ELECTRONIC CONTROL CENTER (ECC), AND WILL BE MODIFIED, BY MOVING PARK BRAKE INPUT SIGNAL TO AN INDEPENDENT AIR SWITCH. MODEL 2010-2013 4700, 4900, 6900. *PE |
| SBW-2018 | 2013-01-16. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. WESTERN STAR: RADIATOR MOUNTING. SOME EPA COMPLIANT WESTERN STAR 4900 VEHICLES EQUIPPED WITH 1700 SQ IN ALUMINUM RADIATORS, MANUFACTURED MARCH 2010 AND LATER, WITH SPECIFIC COMBINATION OF ENGINE OPERATING PARAMETERS, MAY HAVE RADIATOR FAILURES RESULTING IN A COOLANT LEAK DUE TO A CRACK IN THE COOLANT TUBE. LEAKS IN ANY OTHER PLACE OTHER THAN THE COOLANT TUBES DO NOT APPLY FOR THIS BULLETIN. *JS |
| WSB-42-05 | 2012-10-24. Service bulletin. SERVICE BRAKES, AIR:DISC:CALIPER; SERVICE BRAKES, AIR:DISC. WESTERN STAR: AN ISSUE WITH THERMAL OVERLOAD ON BENDIX AIR DISC BRAKES WHERE ABS SENSOR WIRES MELTS, BRAKE ACTUATOR FAILS TO PROPERLY OPERATE DUE TO VENT HOLE IN BOTTOM NOT OPENING, CALIPERS COATED WITH RED OR BRIGHT ORANGE DUST AND TAPPED AND/OR GUIDE PIN BOOTS MELTED OR OTHERWISE SHOWS HEAT DAMAGE. MODELS CONSTELLATION, 4700, 4800, 4900, 5900 AND 6900. NO MODEL YEARS LISTED. *PE |
| WSB-42-6 | 2012-07-28. Service bulletin. SERVICE BRAKES, AIR:DRUM. WESTERN STAR: WHEN APPLYING THE BRAKES, SOME TRUCKS WILL EXPERIENCE SEVERE SHAKING OR SHIMMYING. MODELS CONSTELLATION, 4700, 4800, 4900, 6900 AND 5900. NO MODEL YEARS LISTED. *PE UPDATED 11/1/12. *PE |
| SB-49-12 | 2012-06-14. 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 |
| 35-7 | 2012-04-27. Service bulletin. SUSPENSION:FRONT:WHEEL BEARING; SUSPENSION:MULTIPLE AXLE; POWER TRAIN:DRIVELINE:CENTER SUPPORT BEARING. WESTERN STAR: LUBRICATE WHEEL BEARINGS, REAR DRIVE AXLES. *JS |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.