# Service bulletin SBW31\-016

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.

- Type: Service bulletin
- NHTSA id: 10177605
- Published by NHTSA: 2020\-07\-31
- Manufacturer's number: SBW31\-016
- Manufacturer's date: 2020\-07\-28
- NHTSA component: SUSPENSION:REAR; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY

## NHTSA's summary

Western Star Bulletin for Non\-Airliner Rear Suspension Crossmember Fastener Change. With the start of production on March 2, 2020, the fasteners used to assemble the non\-Airliner rear suspension \(bogie\) crossmember have changed. The rear suspension bogie crossmember gussets to the C\-channel will be assembled with 5/8–18 fasteners. This change includes a revision to a higher friction nut that requires an increase in tightening torque. The new higher friction nut can be identified by its green color.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10177605-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10177605-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Equipment and accessories, Suspension

## Vehicles listed

- 2010 to 2021 WESTERN STAR 4700
- 2010 to 2021 WESTERN STAR 4800
- 2010 to 2021 WESTERN STAR 4900
- 2010 to 2021 WESTERN STAR 5700
- 2010 to 2021 WESTERN STAR 6900

## Recalls for the same vehicles and component

- [22V338000](/recalls/nhtsa/22V338000.md), 2022-05-16: EQUIPMENT:OTHER:LABELS
- [20V660000](/recalls/nhtsa/20V660000.md), 2020-10-27: SUSPENSION:REAR:AXLE:SPINDLE
- [20V634000](/recalls/nhtsa/20V634000.md), 2020-10-14: EQUIPMENT:OTHER:LABELS; TIRES
- [20V539000](/recalls/nhtsa/20V539000.md), 2020-09-03: SUSPENSION:MULTIPLE AXLE
- [20V211000](/recalls/nhtsa/20V211000.md), 2020-04-10: EQUIPMENT:OTHER:LABELS
- [18V913000](/recalls/nhtsa/18V913000.md), 2018-12-19: SUSPENSION:FRONT:CONTROL ARM; STEERING:LINKAGES:TIE ROD ASSEMBLY; STEERING
- [2017636](/recalls/tc/2017636.md), 2017-12-18: Accessories
- [17V810000](/recalls/nhtsa/17V810000.md), 2017-12-15: EQUIPMENT
- [2017407](/recalls/tc/2017407.md), 2017-08-24: Suspension
- [17V521000](/recalls/nhtsa/17V521000.md), 2017-08-24: SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY

## Other bulletins for the same vehicles and component

- [TSB\-32\-020\-WST](/bulletins/11030281.md), 2026-03-27, Service bulletin: SUSPENSION. Technical Service Bulletin for TufTrac M12 Bolts
- [SS734\-WST](/bulletins/11000986.md), 2024-06-05, Other: SUSPENSION. Service Solution for Thread Spring Pin Suspension Alignment \& Installation
- [SBW54\-074](/bulletins/10207520.md), 2022-02-05, Service bulletin: EQUIPMENT. Revised Western Star Service Bulletin for Pana\-Pacific 540 Radio Controls Not Operating Normally. Minor note: added an update of document previously submitted. The related VMRS codes are added
- [CALWS32\-001](/bulletins/10194469.md), 2021-05-25, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES; SUSPENSION; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Customer Advisory Letter on Transverse Track Rod Tower Bracket
- [CALWS49\-001](/bulletins/10194453.md), 2021-05-25, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Customer Advisory Letter on ATD Inlet Pipe Bellows Assembly
- [WSTCAE180\-2020](/bulletins/10193771.md), 2021-05-18, Service bulletin: EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Portland Truck Plant Paint Changes
- [WSTCAE177\-2020](/bulletins/10193768.md), 2021-05-18, Service bulletin: EQUIPMENT; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY. Meritor Transfer Case Updates
- [WSTCAE176\-2020](/bulletins/10193767.md), 2021-05-18, Service bulletin: TRAILER HITCHES; EQUIPMENT; STRUCTURE:FRAME AND MEMBERS. Removable Front Tow Hook Changes
- [WSTCAE172\-2020](/bulletins/10193763.md), 2021-05-18, Service bulletin: EQUIPMENT; VISIBILITY. Tractor Reflective Devices
- [WSTCAE171\-2019](/bulletins/10193762.md), 2021-05-18, Service bulletin: EQUIPMENT; FUEL SYSTEM, OTHER; POWER TRAIN. Allison FuelSense 2.0

JSON: [/v1/bulletins/10177605](/v1/bulletins/10177605)

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