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Service bulletin sbw31013

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 id10146308
Published by NHTSA2018-10-29
Manufacturer's numbersbw31013
Manufacturer's date2018-05-01
NHTSA componentEQUIPMENT; TRAILER HITCHES:FIFTH WHEEL ASSEMBLY; EQUIPMENT ADAPTIVE/MOBILITY

NHTSA's summary

With the start of production on March 6, 2018, the fasteners used to attach the slide- and plate-mount style fifth wheels to the outboard angles changed to M16 metric bolts, nuts, and washers.

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, Trailer hitch

Vehicles listed
WESTERN STAR 47002002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
WESTERN STAR 48002010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
WESTERN STAR 4900
WESTERN STAR 49002002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
WESTERN STAR 57002002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019

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

Recalls for the same vehicles and component
20176362017-12-18. Accessories
17V8100002017-12-15. EQUIPMENT
17V4520002017-07-17. EQUIPMENT
15V1820002015-03-27. EQUIPMENT
20151332015-03-25. Accessories
12V4050002012-08-16. EQUIPMENT
10V5510002010-11-04. EQUIPMENT:OTHER:LABELS
07V5300002007-11-13. TRAILER HITCHES:FIFTH WHEEL ASSEMBLY

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
CALWS32-0012021-05-25. Service bulletin. Customer Advisory Letter on Transverse Track Rod Tower Bracket
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
WSTCAE161-20172021-05-18. Service bulletin. Volume-Based Rectangular Fuel Tank Change
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.