WenmarOpen by Wenmar Pro

Service bulletin CALWS31-001

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 id10198286
Published by NHTSA2021-06-26
Manufacturer's numberCALWS31-001
Manufacturer's date2021-06-16
NHTSA componentWHEELS

NHTSA's summary

Customer Advisory Letter for 4-Hook Chain Hanger Replacement.

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

Wheels

Vehicles listed
WESTERN STAR 57002021, 2022

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

Recalls for the same vehicles and component
20205132020-10-27. Wheels

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
TechTalk77302020-11-03. Service bulletin. Tech Talk discussion on DIFF LOCK SPEED LIMIT.