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Service bulletins for the 2012 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.

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

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
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
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
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
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
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
18SP6842018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 18SP684Rev3 EPA07 and EPA10 DD Platform EGR Delta Pressure Sensor Update
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
fsbw490192018-06-18. Service bulletin. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. fsbw49019 Conduite sous pression de fluide pour échappement diesel (DEF) débranchée au niveau du raccordement du doseur
fsbw420102018-06-18. Service bulletin. ENGINE AND ENGINE COOLING. fsbw42010 Inspection d'absence de fuites d'air par les transporteurs concessionnaires
fsbw420092018-06-18. Service bulletin. ENGINE AND ENGINE COOLING. fsbw42009 Diagnostic de fuite d'air
13TS62018-06-11. Service bulletin. ENGINE. 13TS6 DD Platform Engine Oil Filter.pdf
207-132018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. 207-13 Removal and Installation of the Camshaft Housing
sbw20192018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. sbw2019 Kysor Fan Clutch Rocking Runout Inspection
13TS122018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. 13TS12 HDEP Wastegate Solenoid Air Leaks
13TS102018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. 13TS10 DD Platform Oil Coolant Module Plugs
13TS82018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. 13TS8 GHG14 Throttle Codes SPN 91-FMI 7 and SPN 91-FMI 10
311-132018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. 311-13 SPN 651-FMI 3 - EPA10 - GHG14
303-132018-06-11. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. 303-13 SPN 3242-FMI 4 -EPA10 - GHG14
305-132018-06-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. 305-13 GHG14 DD15 Asymmetrical Turbocharger Flanged Exhaust Manifold
802-132018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. 802-13 FMI 18 Coolant Level Low

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