# Service bulletin S\-1722

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: 11023881
- Published by NHTSA: 2025\-10\-03
- Manufacturer's number: S\-1722
- Manufacturer's date: 2025\-09\-09
- NHTSA component: SERVICE BRAKES
- Manufacturer's system: Wheel End: Parking brake actuator

## NHTSA's summary

Installation Instructions \- Knorr Bremse NG3 Brake Chamber Installation Instructions \- These instructions cover the removal and installation of the service replacement Knorr\-Bremse® NG3 piston\-style parking brake chamber assembly on Air Disc Brakes \(ADB\). For additional information, refer to SD\-23\-7550 on B2Bendix.com.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11023881-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11023881-9999.pdf)

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

## Components

Brakes

## Vehicles listed

- BENDIX AIR DISC BRAKE ACTUATOR
- BENDIX AIR DISC BRAKE ACTUATOR 2
- BENDIX WHEEL ENDS

JSON: [/v1/bulletins/11023881](/v1/bulletins/11023881)

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