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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

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Bulletins, newest first
916-142017-10-15. Service bulletin. FUEL SYSTEM, DIESEL; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 916-14 Fuel Cooler Leak Test Procedure - Two-Filter Fuel System
912-142017-10-15. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE. 912-14 Coolant in Oil
913-142017-10-15. Service bulletin. ENGINE. 913-14 Checking for Poor Engine Brake Performance
905-142017-10-15. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING. 905-14 Coolant Level Circuit Failed
908-142017-10-15. Service bulletin. ENGINE; POWER TRAIN. 908-14 908-14 EGR Differential Pressure Failed (High Box)
915-142017-10-15. Service bulletin. ENGINE. 915-14 Backwards Running Engine Detecte
919-142017-10-15. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 919-14 Exhaust Gas Recirculation Flow Target Error Diagnostic - High Flow
903-142017-10-15. Service bulletin. ELECTRICAL SYSTEM; ENGINE. 903-14 Selective Catalyst Reduction Inlet NOx Sensor Circuit Failed High and Low
904-142017-10-15. Service bulletin. ELECTRICAL SYSTEM; ENGINE. 904-14 Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed High and Low
911-142017-10-15. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. 911-14 5V Sensor Supply Bank 2 Circuit Failed High
909-142017-10-15. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL. 909-14 Diesel Exhaust Fluid Metering Unit Air Pressure Sensor Circuit Failed High and Low
920-142017-10-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. 920-14 Additional Cleaning and Preparing
906-142017-10-15. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. 906-14 Installation of the Oil Pan
917-142017-10-15. Service bulletin. ENGINE. 917-14 Installation and Removal of the Oil Filter Stand Pipe
907-142017-10-15. Service bulletin. POWER TRAIN. 907-14 Installation and Removal of the Flywheel Housing
18SP7062017-10-15. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. 18SP706 Replacement of the High Pressure Fuel Pump Camshaft Oil Seal
18SP7012017-10-15. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE; EQUIPMENT. 18SP701Rev3 GHG14 Two-Filter Fuel System KM63 GEN2 DD15AT Engines High Pressure Fuel Feed Lines, Mounting Bracket and P-clips Service Kit
18SP6872017-10-15. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). 18SP687 18SP687 DD15/16 EGR Actuator Replacement Service Kit
20-182017-10-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. 20-18 - Western Star 4800 and 4900 Radiator Mounting, Update?EPA10
18SP7192017-10-15. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE. 18SP719Rev EPA10 DD13 Three-Filter ESOC Fuel System to Two-Filter KM59 GEN1 Fuel
18SP7142017-10-15. Service bulletin. FUEL SYSTEM, GASOLINE. 18SP714Rev EPA10 DD1516 Three-Filter Fuel System to Two-Filter KM59 GEN1 Fuel
16TS242017-10-15. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. 16TS24 GHG14 DD Platform Engines With Code SPN: 3216/FMI 18, SCR Inlet NOx Sensor Drift Low
AEO15M12017-06-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ELECTRICAL SYSTEM:SOFTWARE. AEO15M1 GHG14 DD PLATFORM SOFTWARE REPROGRAMMING FOR AUTO ELEVATE
18SP7222017-06-05. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY. 18SP722 DD13 KM59 GEN1 BUS TWO-FILTER SYSTEM AMPLIFIER, NEEDLE AND PLV RETURN FUEL LINE CLEARANCE PACKAGE SERVICE KIT
18SP7202017-06-05. Service bulletin. FUEL SYSTEM, OTHER. 18SP720 EPA10 DD15/16 THREE-FILTER ESOC FUEL SYSTEM TO TWO-FILTER KM59 GEN1 FUEL SYSTEM CONVERSION SERVICE KIT

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