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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

Bulletins, newest first
320-152018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 320-15 SPN 4374 (ACM) (GHG14)
301-152018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. 301-15 SPN 3251 (ACM) (EPA10) and (ACM) (GHG14), 3936 (ACM)
302-152018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV); ENGINE. 302-15 Crankshaft Oil Seals
305-152018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. 305-15 EPA10 Diesel Oxidation Catalyst Inlet Pressure Sensor
18SP7062018-06-18. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP; FUEL SYSTEM, GASOLINE. 18SP706 Replacement of the High Pressure Fuel Pump Camshaft Oil Seal
18SP7122018-06-18. Service bulletin. FUEL SYSTEM, GASOLINE. 18SP712 EPA07 DD15/16 Three-Filter Fuel System to Two-Filter KM59 GEN1 Fuel System Conversion Service Kit
18SP7132018-06-18. Service bulletin. FUEL SYSTEM, GASOLINE. 18SP713 EPA10 DD13 Three-Filter Fuel System to Two-Filter KM59 GEN1 Fuel System Conversion Service Kit
18SP7142018-06-18. Service bulletin. FUEL SYSTEM, DIESEL. 18SP714 EPA10 DD15/16 Three-Filter Fuel System to Two-Filter KM59 GEN1 Fuel System Conversion Service Kit
14TS132018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. 14TS13Rev EPA10/GHG14 Diesel Exhaust Fluid (DEF) in Fuel System/Diesel Fuel in DEF System Contamination
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
524-142018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. 524-14 FMI 0: Engine Speed High
513-142018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; FUEL SYSTEM, DIESEL. 513-14 FMI 0: Diesel Particulate Filter Outlet Temperature - Very High
518-142018-06-18. Service bulletin. ENGINE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. 518-14 FMI 1, 18: Regen Temperature- Out Of Range Low
503-142018-06-18. Service bulletin. ELECTRICAL SYSTEM:WIRING; EQUIPMENT. 503-14 FMI 3, 4: High Side Digital Output 3 Circuit Failed High
516-142018-06-18. Service bulletin. EQUIPMENT:ELECTRICAL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. 516-14 FMI 3, 4: DEF pressure sensor circuit failed hig
519-142018-06-18. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL. 519-14 FMI 1: SCR NOx Conversion Efficiency Very Low
502-142018-06-18. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. 502-14 FMI 4 SCR Inlet Temperature High
507-142018-06-18. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT ADAPTIVE/MOBILITY. 507-14 Inspection of the DD15 and DD16 Axial Power Turbine
506-142018-06-18. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). 506-14 506-14 Removal and Installation and Inspection of the Exhaust Gas Recirculation Valve Actuator Pull Rod
607-132018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. 607-13 SPN 3361-FMI 7- EPA10
604-132018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; EQUIPMENT. 604-13 Performing a Parked Regeneration
611-132018-06-18. Service bulletin. FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; FUEL SYSTEM, DIESEL. 611-13 Removal and Installation of the GHG14 Six-Gallon Diesel Exhaust Fluid Tank Header
SF4832018-06-18. Service bulletin. PARKING BRAKE. SF483-DLR Western Star ECC Park Brake Output Signals

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