Service bulletins for the 2018 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.
523 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Labels and manuals are shown. Show all
| 14TS30 | 2017-11-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 14TS30 Aftertreatment Harness Diagnostics |
|---|---|
| 14TS28 | 2017-11-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 14TS28 DD Platform Belt Drive System - Belt Part Numbers and diagnostics |
| 1009-14 | 2017-11-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 1009-14 SPN 5016 (ACM) (GHG14) |
| 1007-14 | 2017-11-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 1007-14 SPN 5016/FMI 3, 4 (ACM) (EPA10) |
| 1006-14 | 2017-11-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 1006-14 SPN 4374 (ACM) (GHG14) |
| 1008-14 | 2017-11-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 1008-14 SPN 3510FMI 4,7, and 8 (CPC)(GHG14) |
| 1010-14 | 2017-11-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 1010-14 SPN 2623 (CPC) (GHG14) |
| 14CSA23 | 2017-11-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 14CSA23 CSC Announces ?Tech Tips? ? DDCSN |
| 14CSA21 | 2017-11-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 14CSA21 Holiday Schedule for the Detroit Customer Support Center ? |
| 14CSA20 | 2017-11-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 14CSA20 EGR Valve Actuator Kit P/N E23539699 |
| 14-039 | 2017-11-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 14-039 New Detroit Standard Diagnostic Times |
| 14-038 | 2017-11-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 14-038 Additional Detroit Standard Repair Times |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.