WenmarOpen by Wenmar Pro

Service bulletins for the 2007 Western Star 6900

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.

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

By type

By component

Only bulletins with component: Fuel system are shown. Show all

Bulletins, newest first
0219-142018-01-05. Service bulletin. FUEL SYSTEM, OTHER. 0219-14 Metal in Fuel
0202-142018-01-05. Service bulletin. FUEL SYSTEM, OTHER. 0202-14 Symptom Diagnostics - Hard Start No Start - Two-Filter Fuel System
0215-142018-01-05. Service bulletin. FUEL SYSTEM, OTHER. 0215-14 Check for Rough Running or Stalling - Three-Filter Fuel System
18SP7032017-11-17. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; FUEL SYSTEM, GASOLINE. 18SP703 18SP703 - GHG14 KM63 GEN2 Low Pressure Fuel Pump-Two-Filter Fuel System Ki
09 06-162016-10-20. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. 0906-16 LOW PRESSURE FUEL PUMP
WSB-49-112014-02-13. Service bulletin. FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY. WESTERN STAR: WHEN TRUCK SITS, FOR ANY EXTENDED PERIOD, WITH A DIESEL EXHAUST FLUID (DEF) SYSTEM, IT WOULD CRYSTALLIZED, IN THE TANK, AROUND FLOAT, ON DEF LEVEL SENDING UNIT TUBE AND NEEDS TO BE CLEANED. *PE
SB-49-122012-06-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; FUEL SYSTEM, DIESEL. WESTERN STAR: AROUND THE DIESEL EXHAUST FLUID (DEF) AN EXCESSIVE AMOUNT OF CRYSTAL OR POWDER BUILT UP INDICATES A LEAK CAUSED BY EVAPORATION OF DEF EXPOSED TO AIR AND/OR DAMPNESS. *PE
FSC-410A2009-11-09. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:FILLING/CHARGING; FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY; FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY. WESTERN STAR SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. CERTAIN VEHICLES MAY HAVE BEEN BUILT WITH 25 INCH DIAMETER FUEL TANK LEVEL SENDER ARMS AND FLOATS THAT MAY CONTACT THE TANK WALL AND GET STUCK, POSSIBLY RESULTING IN AN INACCURATE FUEL LEVEL GAUGE READING. *PE

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