Service bulletins for the 2018 Western Star 5900
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.
47 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Engine are shown. Show all
| VSWP Customer Letter | 2024-06-22. Other. ENGINE. Customer letter regarding variable speed water pump. |
|---|---|
| SPN 3563 / FMI 2 | 2019-08-08. 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-6 | 2019-08-08. 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. |
| sbw54065 | 2019-04-01. Service bulletin. ENGINE. GHG17 Heavy Duty Engine Platform Vehicle Dash Oil Pressure Gauge |
| sbw54065 | 2019-04-01. Service bulletin. ENGINE. GHG17 Heavy Duty Engine Platform Vehicle Dash Oil Pressure Gauge |
| sbw4910 | 2018-06-18. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. sbw4910 Gentech DEF Coolant-Flow Solenoid, Testing and Replacement |
| fsbw42010 | 2018-06-18. Service bulletin. ENGINE AND ENGINE COOLING. fsbw42010 Inspection d'absence de fuites d'air par les transporteurs concessionnaires |
| fsbw42009 | 2018-06-18. Service bulletin. ENGINE AND ENGINE COOLING. fsbw42009 Diagnostic de fuite d'air |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.