# Service bulletin 12\-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.

- Type: Service bulletin
- NHTSA id: 11028169
- Published by NHTSA: 2026\-02\-04
- Manufacturer's number: 12\-001
- Manufacturer's date: 2026\-01\-08
- Campaign id or software version: 12\-001
- NHTSA component: SUSPENSION

## NHTSA's summary

Vehicles equipped with Watson \& Chalin 20K AL2200 lift axles may have crossmember fasteners of incorrect grade.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028169-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028169-9999.pdf)

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

## Components

Suspension

## Vehicles listed

- 2026 KENWORTH T880
- 2026 KENWORTH W990

JSON: [/v1/bulletins/11028169](/v1/bulletins/11028169)

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