Service bulletins for the 2014 Western Star 4700
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.
685 on file from NHTSA, as of 2026-10-19.
By type
By component
| SB-54-58 | 2014-12-24. Service bulletin. ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS. WESTERN STAR: INSTRUCTIONS PROVIDED TO HELP REDUCE VIBRATION ON POWER DISTRIBUTION MODULES (PDM), TO PREVENT CRACKING OF FUSES ON HORIZONTALLY MOUNTED POWERTRAIN. *PE UPDATED 03/02/15*LJ |
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| WS-49-13 | 2014-06-05. Service bulletin. FUEL SYSTEM, DIESEL: PRE-HEATER; FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY. WESTERN STAR: AT RETURN LINE FITTING, DURING COLD EXTREME TEMPERATURES, THE DIESEL EXHAUST FLUID (DEF) TANK WOULD FREEZE. *PE |
| SB-49-11 | 2014-06-04. Service bulletin. FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY. WESTERN STAR: IF DIESEL EXHAUST FLUID (DEF) SYSTEMS IS SITTING FOR EXTENDED TIME, IN TANK, WILL CRYSTALLIZE AROUND FLOAT OF LEVEL SENDING UNIT TUBE AND NEEDS CLEANING TO PREVENT A FALSE OR INCORRECT GAUGE READING. MODEL CONSTALLATION, 4700, 4800, 4900, 5900, 6900. NO YEARS LISTED. *PE |
| SB-54-57 | 2014-05-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT ADAPTIVE/MOBILITY. WESTERN STAR: TROUBLESHOOTING INFORMATION REGARDING POWERNET ASSESSMENT WORKSHEET GUIDE FOR STARTING ISSUES, ALTERNATOR, PATH, BATTERY AND CHARGING OF VEHICLES WITH SEPARATE CABLE VOLTAGE DROP CHECKS. MODEL CONSTELLATION, 4800, 5900, HERITAGE, 4900, 6900, 4700. *PE |
| 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 |
| SF-485-AB | 2014-02-13. Service bulletin. SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM. DAIMLER TRUCK: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. INFORMATION PROVIDED REGARDING THE REPLACEMENT OF THE FRONT AXLE SPRINGS (18,000LB), ON SOME TRUCKS, WITH 20,000LB FRONT AXLE SPRINGS. *PE |
| WSB-20-20 | 2014-02-13. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. WESTERN STAR: INFORMATION PROVIDED REGARDING REPLACEMENT OF STANDARD RADIATOR MOUNT WITH AN ISOLATED MOUNT RADIATOR. *PE |
| SB-54-56 | 2014-01-24. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. WESTERN STAR: DUE TO AN INADEQUATE RETENTION CLIP, THE PLASTIC BATTERY BOX COVER WILL BECOME LOOSE OR MAY BE LOST. MODEL 4700. NO YEARS LISTED. *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 |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.