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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

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
D18M3-REV 12019-09-05. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. Revised Field Service Campaign for Heavy Duty Engine Platform Oil Suction Manifold on DD3, DD15, DD16 Engines for Model Year 2014
0609-192019-08-08. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL. Service Information Bulletin for Symptom Diagnostics - Fluid in the Aftertreatment - Diesel Fuel Contamination.
0308-19 PTO2019-08-08. Service bulletin. ENGINE AND ENGINE COOLING. Service Information Bulletin regarding PTO Dosing. This feature enables Active Regeneration of the DPFs while in PTO mode.
0107-19 GHG172019-08-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); ENGINE AND ENGINE COOLING. Service Bulletin to testing of EGR Cooler Water Manifold Assembly in DD13 engines.
SPN 3563 / FMI 22019-08-08. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. HDEP GHG17 engines are not equipped with turbo wastegates. Steps in this troubleshooting involving wastegates were removed.
19TS-62019-08-08. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL. The modified parked regeneration strategy has been standard on GHG17 units since the start of GHG17 production and was added to EPA10 and GHG14 units with a software update. The modified regeneration utilizes an improved strategy to clean the DOC inlet face and reduce downtime due to DOC face plugging.
18SP725Rev2019-08-07. Service bulletin. ENGINE; EQUIPMENT; FUEL SYSTEM, DIESEL. This service kit includes all necessary parts to replace the high pressure fuel rail feed lines, mounting bracket, P-clips and mounting hardware in the event one of these parts are loosened, removed or missing from the engine.
0606-172019-04-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SPN 3226 (ACM) (GHG17)
0609-172019-04-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SPN 3226 (ACM) (GHG17)
0601-172019-04-08. Service bulletin. ENGINE AND ENGINE COOLING. SPN 3464 (MCM) (GHG14)
0606-172019-04-01. Service bulletin. ENGINE. SPN 3226 (ACM) (GHG17)
0609-172019-04-01. Service bulletin. ENGINE. SPN 3226 (ACM) (GHG17)
0601-172019-04-01. Service bulletin. EQUIPMENT; ENGINE. SPN 3464 (MCM) (GHG14)
0602-172019-04-01. Service bulletin. ENGINE. Cylinder Liner - Testing of the Cylinder Liner Upper O-Ring
0606-172019-03-25. Service bulletin. EQUIPMENT; ENGINE. SPN 3226 (ACM) (GHG17)
0609-172019-03-25. Service bulletin. EQUIPMENT; ENGINE. SPN 3226 (ACM) (GHG17)
0602-172019-03-25. Service bulletin. ENGINE. Cylinder Liner - Testing of the Cylinder Liner Upper O-Ring
17-0232019-02-19. Service bulletin. ENGINE. New Detroit Diesel Cylinder Liner Upper O-Ring Leak Test Standard Repair Time
0902-172019-02-19. Service bulletin. ENGINE. SPN 3556 (ACM) (GHG14)
0903-172019-02-19. Service bulletin. ENGINE. Engine Manufacturer Diagnostics
Aftertreamtent F2018-12-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; EQUIPMENT. Service Information Bulletin for Aftertreamtent Failure Guide
sbw8329 HVAC Fre2018-12-10. Service bulletin. ENGINE AND ENGINE COOLING. Service Solution for HVAC Fresh Air Intake Water Leak in certaian Western Star models-4700, 4900, and 5700
sbw8329 HVAC Fre2018-12-10. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. Service Bulletin: HVAC Fresh Air Intake Water Leak
aeo18M32018-12-10. Service bulletin. ENGINE AND ENGINE COOLING. Field Service Campaign D18M3 Oil_Suction_Manifold_072718, Owner Notice
owner18R32018-12-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. owner18R3 Emission Recall D18R3

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