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Other SIL 19-EP-25 Rev A

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)
TypeOther
NHTSA id11038007
Published by NHTSA2026-10-05
Manufacturer's numberSIL 19-EP-25 Rev A
Manufacturer's date2026-09-03
NHTSA componentPOWER TRAIN
Manufacturer's systemTransmission

NHTSA's summary

Announces design changes to the P3 sun gear shaft and pinion gear

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

Transmission and driveline

Vehicles listed
ALLISON H 40 EP TRANSMISSION
ALLISON H 50 EP TRANSMISSION

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