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Other SS768-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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeOther
NHTSA id11011111
Published by NHTSA2024-12-04
Manufacturer's numberSS768-WST
Manufacturer's date2024-11-21
NHTSA componentSERVICE BRAKES

NHTSA's summary

Service Solution for 47X, 49X, 57X Park brake check valve may be improperly plumbed causing brakes to drag

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

Brakes

Vehicles listed
WESTERN STAR 47X2022 to 2025
WESTERN STAR 49X2021 to 2025
WESTERN STAR 57X2024 to 2025

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