# Service bulletin 22KWB

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: 10213089
- Published by NHTSA: 2022\-06\-02
- Manufacturer's number: 22KWB
- Manufacturer's date: 2022\-05\-10
- NHTSA component: STEERING

## NHTSA's summary

Safety Recall – Interim Notification \- The Dana D\-Series front axle steer arm fasteners that attach the steer arm to the steering knuckle may fail, increasing the risk of a crash or injury. Repair information will be added when a repair procedure and parts are available.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10213089-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10213089-9999.pdf)

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

## Components

Steering

## Vehicles listed

- 2018 to 2020 KENWORTH T170
- 2018 to 2021 KENWORTH T270
- 2018 to 2021 KENWORTH T370
- 2018 to 2021 KENWORTH T440
- 2018 to 2021 KENWORTH T470
- 2018 to 2021 KENWORTH T680
- 2018 to 2020 KENWORTH T800
- 2021 KENWORTH T800B
- 2018 to 2021 KENWORTH T880
- 2018 to 2021 KENWORTH T880B
- 2018 to 2021 KENWORTH W900
- 2018 to 2021 KENWORTH W990

## Recalls for the same vehicles and component

- [2022210](/recalls/tc/2022210.md), 2022-04-25: Steering
- [22V277000](/recalls/nhtsa/22V277000.md), 2022-04-25: STEERING:CRITICAL FASTENERS

## Other bulletins for the same vehicles and component

- [A003](/bulletins/10182207.md), 2020-11-05, Service bulletin: POWER TRAIN; STEERING. PACCAR has determined that all Set Forward Front Axle \(SFFA\) models with the PACCAR 20K front steer axle and wide\-based tires have the potential to experience a shimmy or shake in the front axle. Wide\-based tires include any series tires with widths of 385 mm or higher. This is due a lack of friction in the current axle rotating components. Replacing the thrust roller bearing with a thrust washer assembly creates enough friction to eliminate the shimmy.
- [R1801](/bulletins/10164403.md), 2019-09-05, Service bulletin: STEERING. MY2018 QV/VV Retrofit
- [15\-027](/bulletins/10161167.md), 2019-06-11, Service bulletin: STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID; EQUIPMENT ADAPTIVE/MOBILITY. Non Safety Campaign: ZF \(supplier\) steering gear boxes may have a sealing plug not seated corrected allowing power steering fluid loss.

JSON: [/v1/bulletins/10213089](/v1/bulletins/10213089)

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