Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 526 bulletins for WESTERN STAR
sbw0901
May 1, 2015
060000 ENGINE (PWS)
sbw0901 CANCELED: Aftermarket Parts for Air Cleaner Elements
sbw2024
May 1, 2015
060000 ENGINE AND ENGINE COOLING
sbw2024 OAT Coolant Replaces NOAT Coolant in Detroit Engines
WSTCAE131-2015
Apr 6, 2015
060000 ENGINE AND ENGINE COOLING
OAT COOLANT REPLACES NOAT COOLANT IN DETROIT ENGINES
sbw2023
Apr 1, 2015
062100 ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY
sbw2023 Modine Copper/Brass Bolted Downflow Radiator Rebuilding
SB-54-58
Mar 2, 2015
114400 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
SB-49-16
Mar 1, 2015
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
WESTERN STAR: TRUCK PARKED EXTENDED TIME, AND DEF FREEZES AND WITH ICE EXPANING BREAKS DEF LINE FITTING CONNECTION TO SUCTION PORT AND WOULD NEED REPLACING. MODEL 4700. *PE
SB-54-30
Mar 1, 2015
120000 LIGHTING (PWS)
WESTERN STAR: INFORMATION BEING PROVIDED REGARDING THE DISCONNECTION AND/OR CONNECTING OF DAYTIME RUNNING LIGHTS THAT ARE DISABLED DURING ASSEMBLY. *PE
sbw0116
Mar 1, 2015
060000 ENGINE (PWS)
sbw0116 Pilot Bearing Spacer for Detroit Engines with Eaton transmissions
sbw5430
Mar 1, 2015
110000 ELECTRICAL SYSTEM
sbw5430 Disconnecting or Connecting Daytime Running Lights
sbw5461
Mar 1, 2015
110000 ELECTRICAL SYSTEM
sbw5461 Guidelines for Repairing or Replacing an Electrical Harness
WSTCAE130-2015
Mar 1, 2015
030000 SERVICE BRAKES, HYDRAULIC
BRAKE CHAMBERS - Haldex Life Seal Drive Axle Chambers No Longer Available. RADIO - Pana Pacific to Substitute Equivalent Radio for Data Code 746-1B0
WSTCAE129-2014
Dec 22, 2014
060000 ENGINE AND ENGINE COOLING
COOLANT FILTER - Integrated Coolant Filter Removed from Detroit DD13/DD15/DD16. WINDSHIELD WASHER RESERVOIR - New 2 Gallon Washer Fluid Reservoir for 4700
WSTCAE128-2014
Nov 21, 2014
110000 ELECTRICAL SYSTEM
BATTERIES - Limited Applications for Absorbed Glass Mat Batteries. FIFTH WHEELS - Fontaine to Replace Certain Ultra NT Stationary Fifth Wheels. FOOT PEDALS - All Models to Receive New Suspended Accelerator Pedals
WSTCAE127-2014
Oct 31, 2014
350000 EQUIPMENT
POSITIONING/LOCATING SYSTEMS - Qualcomm MCT/IMCT Wiring No Longer Available
WSB-54-60
Oct 1, 2014
114400 ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS
WESTERN STAR: POOR FUSE RETENTION MAY BE EXPERIENCE ON SOME POWERNET DISTRIBUTION BOX (PNDB), CAUSING INTERMITTENT OPERATION OF SUPPLIED DEVICES BY THESE CIRCUITS. MODEL 4800, 4900, 4700, 5900, 6900. *PE
20-18
Sep 1, 2014
062100 ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY
20-18 - Western Star 4800 and 4900 Radiator Mounting, Update?EPA10