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Service bulletins for the 2007 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.

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

By type

By component

Bulletins, newest first
09 09-162016-10-20. Service bulletin. ENGINE. 0909-16 EXCESSIVE OIL CONSUMPTION
09 06-162016-10-20. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. 0906-16 LOW PRESSURE FUEL PUMP
09 02-162016-10-20. Service bulletin. ENGINE. 0902-16 SYMPTOM DIAGNOSTICS - BELT COMING OFF, SHREDDING OR MISALIGNMENT
08 09-162016-10-19. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 0809-16 SYMPTOM DIAGNOSTICS : NOISY 1- BOX™ AFTERTREATMENT
16 TS-152016-10-18. Service bulletin. EQUIPMENT. 16TS15 EPA07 AND LATER POWER TAKE-OFF (PTO) DOSING FEATURE
06 12-162016-09-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 0612-16 SPN 175 (MCM) (GHG17) AND SPN 175 (MCM); ( EPA07;EPA10;GHG14) DIAGNOSTIC PROCEDURE
06 11-162016-09-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. 0611-16 SPN 110 (MCM) (GHG17) AND SPN 110 (MCM); (EPA07;EPA10;GHG14) DIAGNOSTIC PROCEDURE
06 10-162016-09-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. 0610-16 SPN 111 (CPC) (GHG17) AND SPN 111 (CPC); (EPA07;EPA10;GHG14) DIAGNOSTIC PROCEDURE
06 09-162016-09-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. 0609-16 SPN 174 (MCM) (GHG17), SPN 174 (MCM) (EPA07), SPN 174; (MCM) (EPA10), AND SPN 174 DIAGNOSTIC PROCEDURE
06 01-162016-09-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. 0601-16 SPN 103 (MCM) (GHG17) AND SPN 103 (MCM); (EPA07;EPA10;GHG14) DIAGNOSTIC PROCEDURE
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-35-112014-01-24. Service bulletin. EQUIPMENT. WESTERN STAR: CONMET RECOMMENDS REPLACING THE BEARING SPACER WHEN THE HUB IS REMOVED. MODEL 4700, 4900, 6900. NO YEARS LISTED. *PE
SB-33-042014-01-23. Service bulletin. SUSPENSION:FRONT:WHEEL BEARING. WESTERN STAR: IT HAS BEEN RECOMMENDED, BY CONMET, THAT THE BEARING SPACER BE REPLACED WITH NEW ONE WHEN HUB IS REMOVED. MODEL 4700, 4900, 6900.. NO YEARS LISTED. *PE
SBW-47142013-07-08. Service bulletin. FUEL SYSTEM, GASOLINE. WESTERN STAR: FUEL TANKS ROTATING IN SADDLES. ANTI-SLIP MATERIAL MAY NEED TO BE INSTALLED, OR AN ADDITIONAL STRIP OF RUBBER. *JS
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
35-72012-04-27. Service bulletin. SUSPENSION:FRONT:WHEEL BEARING; SUSPENSION:MULTIPLE AXLE; POWER TRAIN:DRIVELINE:CENTER SUPPORT BEARING. WESTERN STAR: LUBRICATE WHEEL BEARINGS, REAR DRIVE AXLES. *JS
FL-581-AB2011-08-08. Service bulletin. STEERING:LINKAGES:ARM:IDLER AND ATTACHMENT. DAIMLER TRUCK SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. A STEERING COMPONENT MAY CRACK AND POSSIBLY BREAK UNDER SEVERE STEERING CONDITIONS. THIS MAY RESULT IN LESS STEERING CONTROL. *RM
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
SF383A2008-03-19. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. FREIGHTLINER - MODINE RADIATOR MOUNTING JOINTS. MODELS AFFECTED: SPECIFIC FREIGHTLINER CENTURY CLASS S/T AND COLUMBIA VEHICLES, STERLING L-LINE VEHICLES AND WESTERN STAR 4900 VEHICLES MANUFACTURED BETWEEN AUG. 28, 2006 AND JAN. 29, 2007. *NJ
SF371AB2008-03-19. Service bulletin. STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS. FREIGHTLINER - WESTERN STAR POWER STEERING RESERVOIR BRACKETS. MODELS AFFECTED: SPECIFIC FREIGHTLINER WESTERN STAR 4900 VEHICLES MANUFACTURED BETWEEN MAY 26, 2006 AND JULY 26, 2007. *NJ

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