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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.

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Bulletins, newest first
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
ICI13-0092018-06-11. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. ICI13-009-DLR Campaign Claims for Detroit Axle
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
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
102-132018-06-11. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR. 102-13 SPN 84-FMI 13, 19, 21 (MCM) EPA10-GHG14
107-132018-06-11. Service bulletin. ELECTRICAL SYSTEM. 107-13 SPN 84-FMI 7 - GHG14
106-132018-06-11. Service bulletin. POWER TRAIN. 106-13 SPN 100-FMI 10 - GHG14
105-132018-06-11. Service bulletin. POWER TRAIN. 105-13 SPN 625-FMI 13 - GHG14
135-132018-06-11. Service bulletin. POWER TRAIN. 135-13 SPN 1243-FMI 14 - GHG14
104-132018-06-11. Service bulletin. POWER TRAIN. 104-13 SPN 1592-FMI 13 and 19 - GHG14
137-132018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. 137-13 SPN 2798-FMI 4 - EPA10 - GHG14
109-132018-06-11. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 109-13 SPN 3250-FMI 31 (ACM2.1) GHG14
139-132018-06-11. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 139-13 SPN 3251-FMI 0, 16, 20, 21 GHG14

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