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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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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
0504-162018-03-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. Inspection of the DD13 Turbocharger
830-122018-03-05. Service bulletin. ENGINE AND ENGINE COOLING. 830-12 SPN 520326-FMI 4 - GHG14
818-122018-03-05. Service bulletin. ENGINE AND ENGINE COOLING. 818-12 SPN 520296-FMI 19 and 31 - GHG14
815-122018-03-05. Service bulletin. ENGINE AND ENGINE COOLING. 815-12 Installation of the Oil Cooler
811-122018-03-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 811-12 SPN 411-FMI 3
809-122018-03-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; FUEL SYSTEM, DIESEL. 809-12 Removal and Installation of the GHG14 1-BOX From the Vehicle
807-122018-03-05. Service bulletin. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 807-12 Removal and Installation of the GHG14 Diesel Exhaust Fluid Dosing Unit Inlet Screen
803-122018-03-05. Service bulletin. ENGINE. 803-12 SPN 4360-FMI 10, 15 (ACM2.1)
802-122018-03-05. Service bulletin. ENGINE AND ENGINE COOLING. 802-12 SPN 520328-FMI 7 - GHG14
12TS142018-03-05. Service bulletin. ENGINE AND ENGINE COOLING. 12TS14 Repair Facility Input on GHG14 Engine and Aftertreatment System Issues
15TS32018-03-05. Service bulletin. ENGINE AND ENGINE COOLING. 15TS3 Detroit? Coolant Change From Nitrite Organic Acid Technology
15TS102018-03-05. Service bulletin. ENGINE AND ENGINE COOLING. 15TS10Rev DD Engine Platform Coolant Filter
sbw20232018-03-05. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. sbw2023 Modine Copper/Brass Bolted Downflow Radiator Rebuilding
501-152018-03-05. Service bulletin. ENGINE. 501-15 Engine Lifter Brackets
506-152018-03-05. Service bulletin. ENGINE AND ENGINE COOLING. 506-15 Air Compressor Coolant Lines
512-152018-03-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 512-15 GHG14 DD15 AT Exhaust Gas Recirculation Actuator Pull Rod
503-152018-03-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 503-15 DD13 Exhaust Gas Recirculation Valve Actuator
502-152018-03-05. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 502-15 Exhaust Gas Recirculation Actuator Lever
sbw83262018-03-05. Service bulletin. ENGINE AND ENGINE COOLING. sbw8326 HVAC Blower Motor Noise
304-152018-03-05. Service bulletin. ENGINE. 304-15 Diagnostic Tests
303-152018-03-05. Service bulletin. FUEL SYSTEM, OTHER; ENGINE. 303-15 Contaminated Fluids
308-152018-03-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. 308-15 Symptom Diagnostics - Oil Present at the Turbocharger Compressor
323-152018-03-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. 323-15 Symptom Diagnostics ? Noise
306-152018-03-05. Service bulletin. ENGINE; FUEL SYSTEM, DIESEL. 306-15 SPN 3246 (ACM)(EPA10;GHG14)
321-152018-03-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 321-15 SPN 4364 (ACM) (GHG14)

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