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Service bulletins for the 2017 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.

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

By type

By component

Only bulletins with component: Exhaust and emissions are shown. Show all

Bulletins, newest first
FL8212019-11-20. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; EQUIPMENT. Emissions Recall for Western Star 4900 exhaust pipes emitting excess pollutants. Pipe support brackets lacks durability and may cause pipe to crack at bellows and weld breaks to occur at the flange.
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.
SF5612019-06-03. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; FUEL SYSTEM, GASOLINE. Field Service Campaign- SF561 Cummins Green House Gas 2017 Engine Aftertreatment System Retrofit
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)
Aftertreamtent F2018-12-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; EQUIPMENT. Service Information Bulletin for Aftertreamtent Failure Guide
MY18M42018-12-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE. MY18M4_Bulletin_02-MAY-2018 Field Service Campaign D18M4
0508-182018-12-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 0508-18 Aftertreatment
0505-182018-12-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. 0505-18 SPN 3563 HDEP Inlet manifold pressure Too Low
0501-182018-12-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 0501-18 Aftertreatment Control Module (ACM)
0404-182018-10-01. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 0404-18 GHG17 DD8 - Aftertreatment Systems - Diesel Particulate Filter End Cap
0402-182018-10-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 0402-18 SPN 625 (CPC) (GHG14)
0401-182018-10-01. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 0401-18 SPN 1231 (MCM) (EPA10 GHG14)
FL7502018-10-01. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. FL750 Emissions Recall - Ambient Air Temperature Sensors
0323-172018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. (MCM) (GHG17)
0328-172018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. (ACM) (GHG17)
0356-17 SPN2018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). (MCM) (GHG17)
0356-172018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). (MCM) (GHG17)
0321-172018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). (MCM) (GHG17)
0322-172018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE. (MCM) (GHG17)
0309-172018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE. (MCM) (GHG17)
0324-172018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. (MCM) (GHG17)
0310-172018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. (MCM) (GHG17)
0325-172018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. (MCM) (GHG17)
0306-172018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. (ACM) (GHG17)

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