Technical Service Bulletins

Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.

172,063 Unique Bulletins
4,686,952 Total Records
879 Vehicle Makes
1955–2025 Year Range
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Showing 526 bulletins for WESTERN STAR

sbu1504 Dec 1, 2015
WESTERN STAR — 4700, 4900, 5700, 6900, CONSTELLATION (2015–2016) — 20 vehicle combinations
100000 POWER TRAIN
39MT Starter Pinion Teeth Change for 2016 DD13 15 16
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sbw1505 Dec 1, 2015
WESTERN STAR — 4700, 4900, 5700, 6900, CONSTELLATION (2015–2016) — 20 vehicle combinations
100000 POWER TRAIN
39MT Starter Pinion Teeth Change for 2016 DD13/15/16
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sbw2026 Dec 1, 2015
WESTERN STAR — 4800, 4900 (2016) — 2 vehicle combinations
070000 FUEL SYSTEM, GASOLINE
Surge Tank Deaeration Hose Routing
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sbw8813 Dec 1, 2015
WESTERN STAR — 4900 (2007–2017) — 11 vehicle combinations
162800 STRUCTURE:BODY:HOOD
Reducing Excessive Hood Opening Effort, 4900 Models
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WSTCAE135-2015 Nov 23, 2015
WESTERN STAR — WESTERN STAR
060000 ENGINE AND ENGINE COOLING
ENGINE OIL - Detroit Diesel DD13, DD15, & DD16 Engines to Use 10W-30 in 2016. ADMINISTRATION - CAE Holiday Office Closure
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26-03 Nov 1, 2015
WESTERN STAR — 4700 (2009–2016) — 8 vehicle combinations
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
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SBW2027 Nov 1, 2015
WESTERN STAR — 4700 (2014–2017) — 4 vehicle combinations
060000 ENGINE AND ENGINE COOLING
SBW2027 GENTECH COOLANT-LEVEL SENSOR TESTING
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SBW2603 Nov 1, 2015
WESTERN STAR — 4700 (2010–2017) — 8 vehicle combinations
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
SBW2603 EATON TRANSMISSION POPPING OUT OF GEAR
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54-61 Oct 1, 2015
WESTERN STAR — 5900, CONSTELLATION, HERITAGE, WESTERN STAR (2000) — 4 vehicle combinations
110000 ELECTRICAL SYSTEM
Guidelines for Repairing or Replacing an Electrical Harness Use the guidelines in this bulletin to determine if a damaged electrical harness should be repaired or replaced. Refer to the wiring section in Group 54 of the applicable worksho
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83-25 Oct 1, 2015
WESTERN STAR — 5900, CONSTELLATION, HERITAGE — 3 vehicle combinations
138000 VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
Side Window Defroster and Cooling Improvement Retrofit This procedure improves the side window defrost function and overall A/C performance on Western Star 4700, 4800, 4900, 6900 models. In extreme cold conditions, the side windows may ic
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SF519A Oct 1, 2015
WESTERN STAR — 4700 (2011–2014) — 4 vehicle combinations
062100 ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
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WSTCAE134-2015 Sep 15, 2015
WESTERN STAR — WESTERN STAR — 2 vehicle combinations
060000 ENGINE AND ENGINE COOLING
LUBRICANT - Eaton Introduces New Synthetic Lubricant Specification. APPENDIX - New Detroit 2016 OBD / 2017 GHG Engine Rating Tabulation
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40-02 Sep 1, 2015
WESTERN STAR — WESTERN STAR
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
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sbw4002 40-02 Sep 1, 2015
WESTERN STAR — 4700, 4900 (2011–2015) — 5 vehicle combinations
190000 TIRES
- Auto Hauler Tire Failure Due to Improper Operation and Maintenance
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sbw6025 60-25 Sep 1, 2015
WESTERN STAR — 5700 (2015–2017) — 3 vehicle combinations
354000 EQUIPMENT:MECHANICAL
- Adding Fasteners to a Cab-to-Sleeper Transition Panel, 5700 Models
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WSTCAE133-2015 Aug 23, 2015
WESTERN STAR — WESTERN STAR
110000 ELECTRICAL SYSTEM
BATTERIES - The Alliance Model 9A31 AGM Battery No Longer Available
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SB-54-1 Aug 1, 2015
WESTERN STAR — 4700, 4800, 4900, 5700, 6900, CONSTELLATION, HERITAGE (1999–2016) — 14 vehicle combinations
125100 EXTERIOR LIGHTING:BRAKE LIGHTS:SWITCH
WESTERN STAR: BRAKE SIGNAL OVERRIDES TURN SIGNAL UNDER NORMAL OPERATIONS, DUE TO TURN SIGNAL SWITCHES AND STOP/TURN LAMPS ARE SHARING SAME FILAMENT AND SOME TRUCKS WANT 4 WAY FLASHERS TO OVERRIDE SELF CANCELLING TURN SIGNAL SWITCHES. NO M
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sbw8325 Aug 1, 2015
WESTERN STAR — 4700, 4800, 4900, 5700, 6900 (2002–2019) — 85 vehicle combinations
132000 VISIBILITY:GLASS, SIDE/REAR
sbw8325 Side Window Defroster and Cooling Improvement Retrofit
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sbw9801 Aug 1, 2015
WESTERN STAR — 4700, 4800, 4900, 6900, WESTERN STAR (2002–2019) — 47 vehicle combinations
160000 STRUCTURE
sbw9801 Paint Finish Standards
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sbw3512 Jul 1, 2015
WESTERN STAR — 5700 (2015–2017) — 3 vehicle combinations
106000 POWER TRAIN:AXLE ASSEMBLY
sbw3512 Differential Lubrication, Detroit Model 6 Axles
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sbw5401 Jul 1, 2015
WESTERN STAR — 4700, 4800, 4900, 5700, 5900, 6900, CONSTELLATION (2002–2019) — 172 vehicle combinations
110000 ELECTRICAL SYSTEM
sbw5401 Turn Signal and Brake Override Circuit
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sbw5457 Jul 1, 2015
WESTERN STAR — 4700, 4800, 4900, 5700, 6900, CONSTELLATION, WESTERN STAR (2002–2019) — 55 vehicle combinations
110000 ELECTRICAL SYSTEM
sbw5457 Powernet Troubleshooting Guide: Batteries, Path, Alternator
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sbw5463 Jul 1, 2015
WESTERN STAR — 4700, 4800, 4900, 5700, 5900, 6900 (2002–2019) — 78 vehicle combinations
350000 EQUIPMENT
sbw5463 Nexiq USB-Link Upgrade and Diagnostic Connector
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WSTCAE132-2015 Jun 26, 2015
WESTERN STAR — WESTERN STAR
100000 POWER TRAIN
TRANSMISSION - Certain Eaton Heavy-Duty Transmissions are Discontinued
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TSN 88-07 May 19, 2015
WESTERN STAR — 4700 (2020–2022) — 3 vehicle combinations
130000 VISIBILITY
Western Star 4700 non removable bug screen with additional coverage to the bumper - TSN
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