# Service bulletin TSB\-26\-007\-WST

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: 11033102
- Published by NHTSA: 2026\-06\-01
- Manufacturer's number: TSB\-26\-007\-WST
- Manufacturer's date: 2026\-05\-28
- NHTSA component: POWER TRAIN

## NHTSA's summary

Revised Technical Service Bulletin for DT12 OVX Transmission Refresh

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11033102-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11033102-9999.pdf)

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

## Components

Transmission and driveline

## Vehicles listed

- 2021 to 2025 WESTERN STAR 47X
- 2020 to 2025 WESTERN STAR 49X

JSON: [/v1/bulletins/11033102](/v1/bulletins/11033102)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20TSB-26-007-WST&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11033102&vehicle=Service%20bulletin%20TSB-26-007-WST)