# Service bulletin FL766

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: 10146289
- Published by NHTSA: 2018\-10\-29
- Manufacturer's number: FL766
- Manufacturer's date: 2018\-05\-01
- NHTSA component: EQUIPMENT; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY

## NHTSA's summary

Improperly installed power stud may contact the bulkhead, resulting in potential arcing, which may increase the risk of fire.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10146289-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10146289-0001.pdf)

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

## Components

Equipment and accessories, Transmission and driveline

## Vehicles listed

- 2017 to 2019 WESTERN STAR 4700
- 2017 to 2019 WESTERN STAR 4900
- 2017 to 2019 WESTERN STAR 5700
- 2017 to 2019 WESTERN STAR 6900

## Recalls for the same vehicles and component

- [2020488](/recalls/tc/2020488.md), 2020-10-16: Powertrain
- [20V642000](/recalls/nhtsa/20V642000.md), 2020-10-16: POWER TRAIN:CLUTCH ASSEMBLY
- [2018714](/recalls/tc/2018714.md), 2018-12-19: Powertrain
- [18V903000](/recalls/nhtsa/18V903000.md), 2018-12-19: POWER TRAIN:CLUTCH ASSEMBLY
- [2017636](/recalls/tc/2017636.md), 2017-12-18: Accessories
- [17V810000](/recalls/nhtsa/17V810000.md), 2017-12-15: EQUIPMENT
- [17V452000](/recalls/nhtsa/17V452000.md), 2017-07-17: EQUIPMENT
- [17V315000](/recalls/nhtsa/17V315000.md), 2017-05-11: POWER TRAIN:AXLE ASSEMBLY
- [16V634000](/recalls/nhtsa/16V634000.md), 2016-08-31: POWER TRAIN:AXLE HUBS

## Other bulletins for the same vehicles and component

- [TSB26\-008\-WST](/bulletins/11017553.md), 2025-05-02, Service bulletin: POWER TRAIN. Service Solution for DT12 Oil Plug Ports
- [CXA 06\_24\_Clutch Bolts](/bulletins/11003924.md), 2024-07-09, Other: POWER TRAIN. CX Advocate communication for clutch bolts
- [TSB35\-023\-WST](/bulletins/11000978.md), 2024-06-05, Service bulletin: POWER TRAIN. Technical Service Bulletin for New Final Drive Over Heat Diagnostic
- [ICI22\-017](/bulletins/10210548.md), 2022-05-03, Service bulletin: POWER TRAIN. Important Campaign Information Letter for DDC D21M1 Termination Date Extended. This letter is to inform you that a revised bulletin for Detroit Diesel Field Service Campaign D21M1, DT12 Transmission Drive Shaft Cover Plug Reseal has been EXTENDED for an additional three months. Please use the extended termination date for all work under D21M1 from this point forward. REVISION: D21M1 termination date extended to July 1, 2022.
- [SBW41\-002](/bulletins/10207507.md), 2022-02-05, Service bulletin: POWER TRAIN. Revised Western Star Service Bulletin for Drive Line Vibration. 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

JSON: [/v1/bulletins/10146289](/v1/bulletins/10146289)

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