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Service bulletins for the 2011 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.

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

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Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
920-142017-10-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. 920-14 Additional Cleaning and Preparing
906-142017-10-15. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. 906-14 Installation of the Oil Pan
18SP7062017-10-15. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. 18SP706 Replacement of the High Pressure Fuel Pump Camshaft Oil Seal
18SP7012017-10-15. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE; EQUIPMENT. 18SP701Rev3 GHG14 Two-Filter Fuel System KM63 GEN2 DD15AT Engines High Pressure Fuel Feed Lines, Mounting Bracket and P-clips Service Kit
20-182017-10-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. 20-18 - Western Star 4800 and 4900 Radiator Mounting, Update?EPA10
SBW00042017-06-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SBW0004 WESTERN STAR COURTESY ENGINEERING POLICY
54-552016-10-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SBW5455 VIRTUAL TECHNICIAN RETROFIT
16 TS-152016-10-18. Service bulletin. EQUIPMENT. 16TS15 EPA07 AND LATER POWER TAKE-OFF (PTO) DOSING FEATURE
16 TS-142016-10-17. Service bulletin. EQUIPMENT; ENGINE. 16TS14 EPA10 AND GHG14 SERVICE REPLACEMENT 1-BOX DOC INLET CHANGE
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 05-162016-09-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 0605-16 SPN 625 (CPC)(GHG17) AND SPN 625 (CPC) (EPA10;GHG14) 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
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

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