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Service bulletin SD-03-953_US_005

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 id10110869
Published by NHTSA2017-08-10
Manufacturer's numberSD-03-953_US_005
Manufacturer's date2017-03-09
NHTSA componentSUSPENSION

NHTSA's summary

This is a service data sheet for the Bendix® LQ-5 ratio valve. This valve can be used in a variety of applications, including truck-tractors, straight trucks, school buses and transit buses. For truck-tractors, it is used on the front (steering) axle of tractor air brake systems to proportion brake application pressure during normal tractor-trailer operation.

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

Suspension

Vehicles listed
BENDIX LQ-5

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