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Service bulletin sbw31014

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10146309
Published by NHTSA2018-10-29
Manufacturer's numbersbw31014
Manufacturer's date2018-05-01
NHTSA componentSUSPENSION; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT

NHTSA's summary

With the start of production on April 2, 2018, the fasteners used to assemble Airliner rear suspension crossmembers changed. The forward-suspnsion crossmember will assembled with 5/8-18 fasteners and the rear-suspension (bogie) crossmember will be assembled with 3/4-16 fasteners.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Equipment and accessories, Suspension

Vehicles listed
WESTERN STAR 47002019
WESTERN STAR 49002019
WESTERN STAR 57002019
WESTERN STAR 69002019

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
18V9130002018-12-19. SUSPENSION:FRONT:CONTROL ARM; STEERING:LINKAGES:TIE ROD ASSEMBLY; STEERING

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SS734-WST2024-06-05. Other. Service Solution for Thread Spring Pin Suspension Alignment & Installation
CALWS49-0012021-05-25. Service bulletin. Customer Advisory Letter on ATD Inlet Pipe Bellows Assembly
WSTCAE180-20202021-05-18. Service bulletin. Portland Truck Plant Paint Changes
WSTCAE177-20202021-05-18. Service bulletin. Meritor Transfer Case Updates
WSTCAE176-20202021-05-18. Service bulletin. Removable Front Tow Hook Changes
WSTCAE170-20192021-05-18. Service bulletin. New Valeo A/C Compressor
WI21-0082021-04-23. Service bulletin. Warranty Information Letter announcing DTNA is adjusting the Standard Repair Times (SRTs) shown. The updated times will be applied to repair orders opened on or after April 5, 2021.
DT12 Trans Chafe2021-04-08. Service bulletin. DTNA received a field notification on multiple units regarding diagnostic fault codes that were found to be causing issues to the After Treatment Control Module (ACM). These fault codes indicated that the ACM communication message was not received by the Motor Control Module (MCM) which in certain cases, led to a 25% engine de-rate situation. Further diagnosis revealed that the DT12 wiring harness was chafing and contacting the transmission TCU case. To reduce potential chafing areas, the proposed short-term containment was to route the wiring harness using additional tie straps. This communication applies to Freightliner and Western Star vehicles built with DT12 transmissions.
WP60-1002021-03-25. Service bulletin. Updated Western Star Parts Technical Bulletin for Universal Design Floor Mats. This bulletin replaces the version dated February 12, 2021. Information about parts notes in the Paragon system have been added and the trimming instructions are revised. Universal floor mat designs fit multiple cab configurations and may require trimming. Trim lines displaying size options are scored into the pad side of the mat; use an existing floor mat as a guide for optimal results. The new mat should not interfere with safety-critical equipment, such as foot pedals.
SBW54-0572021-03-25. Service bulletin. Western Star Service Bulletin for Powernet Troubleshooting Guide - Batteries, Path, Alternator, and Starter. When troubleshooting powernet issues, use the BCT-460DTNA PowerNet Assessment Tool. As of May 29, 2018, the AutoMeter is the only Daimler-approved tool for troubleshooting vehicle Powernet issues.