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Service bulletins for the 2013 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.

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

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Bulletins, newest first
18SP7202017-06-05. Service bulletin. FUEL SYSTEM, OTHER. 18SP720 EPA10 DD15/16 THREE-FILTER ESOC FUEL SYSTEM TO TWO-FILTER KM59 GEN1 FUEL SYSTEM CONVERSION SERVICE KIT 2
18SP7182017-06-05. Service bulletin. FUEL SYSTEM, OTHER. 18SP718 EPA07 DD15/16 THREE-FILTER ESOC FUEL SYSTEM TO TWO-FILTER KM59 GEN1 FUEL SYSTEM CONVERSION SERVICE KIT
SBW00042017-06-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SBW0004 WESTERN STAR COURTESY ENGINEERING POLICY
1021-162017-06-01. Service bulletin. ENGINE AND ENGINE COOLING. 1021-16 SPN 110 (MCM)(EPA07EPA07;GHG14), SPN 110 (CPC)(GHG14)
1018-162017-06-01. Service bulletin. ENGINE. 1018-16 SYMPTOM DIAGNOSTICS - NOISE
1017-162017-06-01. Service bulletin. ENGINE. 1017-16 ENGINE MODEL AND SERIAL NUMBER DESIGNATION
18SP713REV 18SP72017-05-31. Service bulletin. FUEL SYSTEM, OTHER. 18SP713REV 18SP713 –EPA10 DD13 THREE-FILTER FUEL SYSTEM TO TWO-FILTER KM59 GEN1 FUEL SYSTEM CONVERSION SERVICE KIT
16TL202017-05-31. Service bulletin. ENGINE. 16TL20 HEAVY DUTY ENGINE VALVE STEM SEAL INSTALLING DRIFT AND SLEEVE
16TL172017-05-30. Service bulletin. ENGINE. 16TL17 LABEL UPDATE FOR GHG14 TEST AFTERTREATMENT CONTROL MODULE (ACM)
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
16 TS-182016-10-20. Service bulletin. ENGINE. 16TS18 EPA10 AND LATER DD AUTO-ELEVATE FEATURE
08 10-162016-10-19. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. 0810-16 SYMPTOM DIAGNOSTIC – NOISE
08 09-162016-10-19. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 0809-16 SYMPTOM DIAGNOSTICS : NOISY 1- BOX™ AFTERTREATMENT
54-552016-10-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SBW5455 VIRTUAL TECHNICIAN RETROFIT
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-54-582014-12-24. Service bulletin. ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS. WESTERN STAR: INSTRUCTIONS PROVIDED TO HELP REDUCE VIBRATION ON POWER DISTRIBUTION MODULES (PDM), TO PREVENT CRACKING OF FUSES ON HORIZONTALLY MOUNTED POWERTRAIN. *PE UPDATED 03/02/15*LJ
TT-7400-EN2014-07-03. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:MANUAL TRANSMISSION. DAIMLER TRUCKS: ON BEHALF OF WESTERN STAR AND FREIGHTLINER TRUCKS, A REPROGRAMMING WILL BE PERFORMED FOR ACCELERATION CONTROL (VAC), ON SOME TRUCKS, BY ALLISON TRANSMISSION DISTRIBUTORS. *PE

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