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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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11027587
Published by NHTSA2026-01-12
Manufacturer's numberSD-11-550
Manufacturer's date2026-01-12
NHTSA componentPOWER TRAIN; SERVICE BRAKES
Manufacturer's systemAir Brake System: Air Compressor

NHTSA's summary

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

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

Brakes, Transmission and driveline

Vehicles listed
BENDIX BA-921 COMPRESSOR

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