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Service bulletins for the 2014 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.

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

By type

By component

Bulletins, newest first
413-132018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 413-13 GHG14 13 and 23 Gallon Diesel Exhaust Fluid Tank
407-132018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). 407-13 EGR Actuator Slow Learn
608-132018-06-18. Service bulletin. FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. 608-13 High Pressure Fuel Flange-Two-Filter System
603-132018-06-18. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP. 603-13 SPN 84 -FMI 6 - EPA07-GHG14
sbw54392018-06-18. Service bulletin. ELECTRICAL SYSTEM. RX Module Fault Codes
707-132018-06-18. Service bulletin. FUEL SYSTEM, DIESEL; FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES; FUEL SYSTEM, GASOLINE. 707-13 Description and Operation of the HC Doser Fuel Supply Pressure Control Valve - Two Filter System
710-132018-06-18. Service bulletin. FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. 710-13 Metal in the Fuel System - Three-Filter Fuel System
712-132018-06-18. Service bulletin. FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. 712-13 Fuel Cooler Leak Test Procedure - Three-Filter Fuel System
705-132018-06-18. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL. 705-13 Test-E Three-Filter Fuel System
702-132018-06-18. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL. 702-13 Test E Two-Filter Fuel System
711-132018-06-18. Service bulletin. ENGINE; ELECTRICAL SYSTEM. 711-13 SPN 100-FMI 4 - ALL YEARS
717-132018-06-18. Service bulletin. EQUIPMENT; ENGINE; EQUIPMENT:MECHANICAL; EQUIPMENT ADAPTIVE/MOBILITY. 717-13 Oil Pan
sbw54552018-06-18. Service bulletin. EQUIPMENT. sbw5455 Virtual Technician Retrofit
0202-172018-06-18. Service bulletin. ENGINE. 0202-17 DD13, DD15, and DD16 Cylinder Head Assembly Removal and Installation
FL7212018-06-18. Service bulletin. FUEL SYSTEM, GASOLINE. FL721 CNG Fuel Tank and CPDM Mounting Location
FL7252018-06-18. Service bulletin. SEAT BELTS:FRONT:ANCHORAGE; SEAT BELTS. FL725 Western Star Seat Belt Anchor Plates
ICI17-0022018-06-18. Service bulletin. FUEL SYSTEM, DIESEL. FL721 Interim Recall Ending ? Final Recall to Begin
15TS92018-06-18. Service bulletin. FUEL SYSTEM, DIESEL. 15TS9 Hydrocarbon Doser Block Fuel Compensation Pressure Sensor
324-152018-06-18. Service bulletin. EQUIPMENT. 324-15 External Component Repair
326-152018-06-18. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING; EQUIPMENT:ELECTRICAL. 326-15 Main Shaft Speed Sensor
304-152018-06-18. Service bulletin. EQUIPMENT; ENGINE. 304-15 Diagnostic Tests
303-152018-06-18. Service bulletin. ENGINE. 303-15 Contaminated Fluids
325-152018-06-18. Service bulletin. EQUIPMENT. 325-15 Symptom Diagnosis - ATD Checklist
308-152018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE. 308-15 Symptom Diagnostics - Oil Present at the Turbocharger Compressor
323-152018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS; EQUIPMENT. 323-15 Symptom Diagnostics ? Noise

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