Service bulletins for the 2008 Western Star 4700
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.
325 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: EGR valve are shown. Show all
| 525-13 | 2018-06-25. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). 525-13 SPN 2791-FMI 7 ? ALL YEARS |
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| 512-14 | 2018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); EQUIPMENT. 512-14 FMI 0: DPF Outlet Temperature Very High |
| 18SP684 | 2018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 18SP684Rev3 EPA07 and EPA10 DD Platform EGR Delta Pressure Sensor Update |
| 0114-17 | 2018-04-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). 0114-17 SPN 2791 (MCM) (EPA07;EPA10) |
| 0514-16 | 2018-03-13. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). Cleaning of the Exhaust Gas Recirculation Venturi Pipe Delta P Sensor Ports |
| 18SP687 | 2017-10-15. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). 18SP687 18SP687 DD15/16 EGR Actuator Replacement Service Kit |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.