Vehicle report

2023 WESTERN STAR 4900

Service bulletins

34 bulletins

Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.

PB-47-900-WST

Service Bulletin/Repair Instructions

Parts Bulletin for Fluorosilicone Fuel Tank Cap Seals

CXA_10_25_Conmet Oil Pan

Other

CX Advocate for ConMet Oil Pan Insert Additional Issues

CXA 3_25_NOx

Other

CX Advocate for NOx conversion low faults

CXA 2_25_NOx

Other

CX Advocate for NOx conversion low faults

CXA 1_16_NOx

Other

CX Advocate for NOx conversion low faults

D24R2-Bulletin

Emissions

Emission Recall for DETROIT DD13 and DD16 ACM Software Reprogramming

D24R2-DLR LTR

Emissions

Emission Recall for DETROIT DD13 and DD16 ACM Software Reprogramming

D24R2-OWN LTR

Emissions

Emission Recall for DETROIT DD13 and DD16 ACM Software Reprogramming

CXA 10_17_Incorrect VIN

Other

CX Advocate for eCascadia incorrect VIN (SF692)

CXA 10_17_Reman Process

Other

CX Advocate for overview of the remanufacturing process.

ICI24-036

Other

Important Campaign Information letter for SF679 – Revised Bulletin.

SF679-Bulletin

Service Campaign

Revised Field Service Campaign for Virtual Technician Module. 2nd REVISION:Certain vehicles in Group B with Cummins engines have been reassigned to the newly created Group E. The Parts table has been updated to include the mounting bracket and fasteners required for Virtual Technician installation. A new SRT has been added to Campaign Group E: 996-F175E ECU, VIRTUAL TECHNICIAN, POPULATION E, INSTALL (SF679), 0.8 hours. Additionally, the Work Instructions have been revised to provide supplementary details for installing the Virtual Technician on vehicles with Cummins engines that were missing the Common Powertrain Controller (CPC) mounting bracket.

SF679-DLR LTR

Service Campaign

Revised Field Service Campaign for Virtual Technician Module. 2nd REVISION:Certain vehicles in Group B with Cummins engines have been reassigned to the newly created Group E. The Parts table has been updated to include the mounting bracket and fasteners required for Virtual Technician installation. A new SRT has been added to Campaign Group E: 996-F175E ECU, VIRTUAL TECHNICIAN, POPULATION E, INSTALL (SF679), 0.8 hours. Additionally, the Work Instructions have been revised to provide supplementary details for installing the Virtual Technician on vehicles with Cummins engines that were missing the Common Powertrain Controller (CPC) mounting bracket.

SF692-Bulletin

Service Campaign

Field Service Campaign for VIN Certification Labels

SF692-DLR LTR

Service Campaign

Field Service Campaign for VIN Certification Labels

SF692-OWN LTR

Service Campaign

Field Service Campaign for VIN Certification Labels

CXA 8_24_AutoElevate Disa

Other

CX Advocate for AutoElevate Disablement Gen5 Engines

CXA 8_24_AutoElevate and

Other

CX Advocate for benefits of Autoelevate and hydrocarbon faults

CXA 8_24_Conmet Oil Pan

Other

CX Advocate for ConMet Oil Pan Insert Additional Failures

CXA 7_24_AutoElevate Disa

Other

CX Advocate for AutoElevate Disablement Gen5 Engines

CXA 7_24_Conmet Oil Pan

Other

CX Advocate for ConMet Oil Pan Insert Additional Failures

CXA 7_24_NOx

Other

CX Advocate for NOx conversion low faults. Update to CXA 6_24_NOx submission.

CXA 7_24_Reman Process

Other

CX Advocate for overview of the remanufacturing process.

CXA 7_24_Reman Process V2

Other

CX Advocate for overview of the remanufacturing process.

CXA 06_24_Clutch Bolts

Other

CX Advocate communication for clutch bolts

CXA 06_24_NOx

Other

CX Advocate communication for NOx conversion low faults

SS734-WST

Other

Service Solution for Thread Spring Pin Suspension Alignment & Installation

VSWP Customer Letter

Other

Customer letter regarding variable speed water pump.

SS763-WST

Other

Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller

SS3144-FTL

Service Bulletin/Repair Instructions

Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller

ICI24-004

Service Bulletin/Repair Instructions

Important Campaign Information letter for SF679 Bulletin Revision. REVISION: The parts table has been updated.

SF679

Service Bulletin/Repair Instructions

Revised Field Service Campaign for Virtual Technician Module. REVISION: The parts table has been updated.

ICI23-043

Service Bulletin/Repair Instructions

Important Campaign Information Letter for SF680 Allison TCM Software Update / TT9108EN

MYCOM_03142022-2

Service Bulletin/Repair Instructions

Western Star Multi-Color Paint Designs - WST185 Cab/Hood paint will be limited to Paint: One Solid Color (065-000) for Western Star 4700, 4800, 4900, and 6900 models built at Portland Truck Plant.

Reading this report

Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.