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Service bulletin SIL-23-EP-23

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 id10247867
Published by NHTSA2024-01-02
Manufacturer's numberSIL-23-EP-23
Manufacturer's date2023-11-16
NHTSA componentUNKNOWN OR OTHER; POWER TRAIN:CLUTCH ASSEMBLY:BELL HOUSING

NHTSA's summary

Announces new C1 clutch housing and service tip.

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, Clutch

Vehicles listed
ALLISON TRANSMISSION
ALLISON DIV ALLISON DIV

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