# Service bulletin SD\-11\-550

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: 11027587
- Published by NHTSA: 2026\-01\-12
- Manufacturer's number: SD\-11\-550
- Manufacturer's date: 2026\-01\-12
- NHTSA component: POWER TRAIN; SERVICE BRAKES
- Manufacturer's system: Air Brake System: Air Compressor

## NHTSA's summary

Service Data Instructions: Bendix® BA\-3800™ Single\-Cylinder Compressor

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11027587-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11027587-9999.pdf)

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

## Components

Brakes, Transmission and driveline

## Vehicles listed

- BENDIX BA\-921 COMPRESSOR

JSON: [/v1/bulletins/11027587](/v1/bulletins/11027587)

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