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Service bulletin 2013FA03

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 id10155464
Published by NHTSA2019-04-01
Manufacturer's number2013FA03
Manufacturer's date2013-10-08
NHTSA componentPOWER TRAIN; EQUIPMENT

NHTSA's summary

Customer service campaign related to Transmission Shift Valve Trim Spring Failures in Refuse, School Bus and Shuttle Bus vocations

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

Equipment and accessories, Transmission and driveline

Vehicles listed
ALLISON 3000 SERIES TRANSMISSION
ALLISON 4000 SERIES TRANSMISSION
ALLISON B300
ALLISON B400
ALLISON H 50 EP TRANSMISSION
ALLISON T SERIES

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