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Service bulletins for the 2017 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.

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

By type

By component

Bulletins, newest first
15CSA242017-06-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 15CSA24 GHG17 RAPID WARRANTY PARTS RETURN
AEO15M12017-06-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ELECTRICAL SYSTEM:SOFTWARE. AEO15M1 GHG14 DD PLATFORM SOFTWARE REPROGRAMMING FOR AUTO ELEVATE
18SP7222017-06-05. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY. 18SP722 DD13 KM59 GEN1 BUS TWO-FILTER SYSTEM AMPLIFIER, NEEDLE AND PLV RETURN FUEL LINE CLEARANCE PACKAGE SERVICE KIT
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
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
FL7182017-06-01. Service bulletin. POWER TRAIN:AXLE HUBS. FL718 FRONT AXLE HUB RATING
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
1016-162017-06-01. Service bulletin. ENGINE. 1016-16 DIAGNOSTIC TEST - ENGINE OIL LEAKS
1005-162017-06-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 1005-16 SPN 4364 (ACM) (GHG17)
1004-162017-06-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 1004-16 SPN 3511 (ACM) (GHG17)
1003 SPN 35092017-06-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SPN 3509 (ACM) (GHG17)
1002-162017-06-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 1002-16 SPN 3512 (ACM) (GHG17)
1001-162017-06-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 1001-16 SPN 3719 (ACM) (GHG17)
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
16TS212017-05-31. Service bulletin. ELECTRICAL SYSTEM. 16TS21 GHG17 DD PLATFORM ENGINES WITH CODE SPN: 3217 FMI: 2, SCR INLET NOX SENSOR LAMBDA DRIFT LOW OR CODE SPN: 3227 FMI: 2, SCR OUTLET NOX SENSOR LAMBDA DRIFT LOW
16TL202017-05-31. Service bulletin. ENGINE. 16TL20 HEAVY DUTY ENGINE VALVE STEM SEAL INSTALLING DRIFT AND SLEEVE
16TL182017-05-31. Service bulletin. ELECTRICAL SYSTEM. 16TL18 GHG17 MEDIUM DUTY (MD) TEST ELECTRONIC CONTROL UNITS (ECUS)
16TL172017-05-30. Service bulletin. ENGINE. 16TL17 LABEL UPDATE FOR GHG14 TEST AFTERTREATMENT CONTROL MODULE (ACM)
16TL14REV2017-05-30. Service bulletin. ENGINE. 16TL14REV GHG17 CAMSHAFT TIMING TOOL SET W470589062300
09 11-162016-10-21. Service bulletin. ENGINE; FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY. 0911-16 SPN 1761 (ACM) (GHG17)
09 10-162016-10-21. Service bulletin. ENGINE. 0910-16 SPN 3251 (ACM) (GHG17)

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