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Service bulletins for the 2012 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.

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

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Bulletins, newest first
sbw54552018-06-11. Service bulletin. EQUIPMENT. sbw5455 Virtual Technician Retrofit
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
13TS72018-06-11. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING. 13TS7 GHG14 CPC4 Vehicle Speed Sensor Code SPN 84-FMI 6
310-132018-06-11. Service bulletin. FUEL SYSTEM, GASOLINE. 310-13 Draining the Fuel System Using J-48710 Prior to Repairs
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
301-132018-06-11. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 301-13 SPN 5018- FMI 18 -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
1112-122018-06-11. Service bulletin. FUEL SYSTEM, GASOLINE. 1112-12 Test C -Two-Filter Fuel System
1101-122018-06-11. Service bulletin. FUEL SYSTEM, GASOLINE. 1101-12 Test B -Two-Filter Fuel System
1102-122018-06-11. Service bulletin. FUEL SYSTEM, GASOLINE. 1102-12 Test A - Two-Filter Fuel System
1118-122018-06-11. Service bulletin. POWER TRAIN. 1118-12 SPN 705-FMI 5 - GHG14
1113-122018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. 1113-12 SPN 3226/FMI 20 - GHG14
12-0332018-06-11. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 12-033-DLR Over the Counter No Hassle Warranty (OTC)
FL6242018-06-11. Service bulletin. SEATS. FL624-DLR National Seating Seat Suspension Welds
ICI12-0262018-06-11. Service bulletin. POWER TRAIN. ICI12-026-DLR SF471 - Second Revised Bulletin
ICI12-0252018-06-11. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. ICI12-025-DLR SF471 - Revised Bulletin
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
13TL22018-06-11. Service bulletin. ELECTRICAL SYSTEM. 13TL2 GHG14 Test Electronic Control Units (ECUs).
143-132018-06-11. Service bulletin. FUEL SYSTEM, GASOLINE. 143-13 Low Pressure Fuel System - Measuring Fuel Pressure Using Fuel System Integrity Check, Two-Filter Fuel System

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