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Service bulletins for the 2014 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.

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

By type

By component

Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
323-152018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS; EQUIPMENT. 323-15 Symptom Diagnostics ? Noise
14TS162018-06-18. Service bulletin. EQUIPMENT:MECHANICAL; ENGINE. 14TS16 Excessive Overhead Engine Noise on DD Platform Engines
14TS152018-06-18. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE; EQUIPMENT. 14TS15 Issues with PTO and Remote Throttle Combinations
522-142018-06-18. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. 522-14 Removal and Installation of the Oil Pump Cover
505-142018-06-18. Service bulletin. FUEL SYSTEM, OTHER:FUEL FILTER; EQUIPMENT ADAPTIVE/MOBILITY. 505-14 Fuel Cooler Leak Test Procedure - Three-Filter Fuel System
504-142018-06-18. Service bulletin. EQUIPMENT; FUEL SYSTEM, OTHER:FUEL FILTER. 504-14 Test-E - Three-Filter Fuel System
503-142018-06-18. Service bulletin. ELECTRICAL SYSTEM:WIRING; EQUIPMENT. 503-14 FMI 3, 4: High Side Digital Output 3 Circuit Failed High
519-142018-06-18. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL. 519-14 FMI 1: SCR NOx Conversion Efficiency Very Low
517-142018-06-18. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. 517-14 FMI 18: SCR NOx Conversion efficiency low
511-142018-06-18. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; COMMUNICATION; EQUIPMENT:ELECTRICAL; EQUIPMENT. 511-14 FMI 9 Soot Sensor Communication Error
520-142018-06-18. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:ELECTRICAL; EQUIPMENT. 520-14 FMI 2 Soot Sensor Heater Faul
523-142018-06-18. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; EQUIPMENT:ELECTRICAL. 523-14 FMI 18: Soot Sensor Temperature Low
501-142018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; EQUIPMENT; ENGINE; EQUIPMENT ADAPTIVE/MOBILITY. 501-14 Removal and Installation of the DD13 Exhaust Flanged Manifold
604-132018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; EQUIPMENT. 604-13 Performing a Parked Regeneration
0401-182018-06-18. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 0401-18 SPN 1231 (MCM) (EPA10 GHG14)
ICI18-0142018-06-18. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. ICI18-014 Owner Notice ? Kidde Fire Extinguisher Recall
18SP7052018-06-18. Service bulletin. EQUIPMENT; FUEL SYSTEM, OTHER:FUEL FILTER; ENGINE. 18SP705Rev4 18SP701Rev GHG14 Two-Filter Fuel System KM63 GEN2 DD15AT Engines High Pressure Fuel Feed Lines, Mounting Bracket and P-clip
18SP7012018-06-18. Service bulletin. EQUIPMENT; ENGINE; FUEL SYSTEM, OTHER:FUEL FILTER. 18SP701Rev GHG14 Two-Filter Fuel System KM63 GEN2 DD15AT Engines High Pressure Fuel Feed Lines, Mounting Bracket and P-clips
ssbw490192018-06-18. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. ssbw49019 Manguera de presión del líquido de escape diésel (DEF) desconectada en la conexión del dosificador
13WO-22018-06-11. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 13WO-2-New Standard Rpr Times orgl 11WO2 New Standard Repair Times for EPA07-10 DD13-15 Diagnostic Tests
sbw54552018-06-11. Service bulletin. EQUIPMENT. sbw5455 Virtual Technician Retrofit
301-132018-06-11. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 301-13 SPN 5018- FMI 18 -GHG14
ICI12-0242018-06-11. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. ICI12-024-DLR SF453 - Termination Date Extended
sbw31092018-06-11. Service bulletin. EQUIPMENT. sbw3109 Huck-Spin 2 Changeover
128-132018-06-11. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 128-13 SPN 511403-FMI 0,1,2,3,4,5,6,8,9,10,11,12,13,14

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