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Service bulletins for the 2009 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.

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

By type

By component

Bulletins, newest first
703-152018-06-11. Service bulletin. FUEL SYSTEM, GASOLINE. 703-15 GHG14 DD15 AT Exhaust Gas Recirculation Valve Actuator
sbw54632018-06-11. Service bulletin. EQUIPMENT. sbw5463 Nexiq USB-Link Upgrade and Diagnostic Connector
805-152018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. 805-15 FMI 0: Selective Catalyst Reduction Outlet Temperature High
803-152018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. 803-15 Removal of the Camshaft Housing
sbw49112018-06-11. Service bulletin. ELECTRICAL SYSTEM. sbw4911 DEF Gauge Reading Incorrectly
1105-172018-06-11. Service bulletin. FUEL SYSTEM, DIESEL. EPA10, GHG14 and GHG17 Diesel Particulate Filters
1110-172018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. Exhaust and Exhaust Gas Recirculation
sbw54012018-06-11. Service bulletin. EXTERIOR LIGHTING. sbw5401 Turn Signal and Brake Override Circuit
sbw98012018-06-11. Service bulletin. STRUCTURE. sbw9801 Paint Finish Standards
sbw83252018-06-11. Service bulletin. VISIBILITY:GLASS, SIDE/REAR. sbw8325 Side Window Defroster and Cooling Improvement Retrofit
0312-182018-06-11. Service bulletin. POWER TRAIN. 0312-18 Installation Output Shaft Seal
0311-182018-06-11. Service bulletin. POWER TRAIN. 0311-18 Installation of the Main Shaft Speed Sensor
0409-172018-06-11. Service bulletin. EQUIPMENT. SPN 1663 (CPC) (EPA07 10 GHG14 GHG17)
sbw490172018-06-11. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM. Magnetized Fill Neck for Six-Gallon DEF Tanks
0141-172018-04-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). 0141-17 SPN 2659 (MCM) (EPA10)
0120-172018-04-16. Service bulletin. ENGINE. 0120-17 Diagnostic Test - Engine Oil Leaks - Oil Developer Method
0114-172018-04-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). 0114-17 SPN 2791 (MCM) (EPA07;EPA10)
1213-162018-04-16. Service bulletin. FUEL SYSTEM, DIESEL. 1213-16 SPN 3480 (MCM) (EPA07;EPA10 GHG14)
15TL242018-03-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. 15TL24 OTC 1750 Revolver Engine Stand
15TS162018-03-13. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 15TS16Rev1 EPA10 Reman MCM Improvement for Fault Codes SPN 651 to 656
15TS42018-03-13. Service bulletin. ENGINE AND ENGINE COOLING. 15TS4_Rev2_ EPA07 DD15 Piston Kits
1207-152018-03-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 1207-15 Updated procedures with adding EPA10 to the GHG14 title
1202-152018-03-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 1202-15 Symptom Diagnostics - ATD Checklist
1210-142018-03-13. Service bulletin. EQUIPMENT. 1210-14 Cylinder Head
1205-152018-03-13. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. 1205-15 Selective Catalyst Reduction (SCR) Inlet Temperature Sensor

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