# Service bulletin TT8144EN

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.

- Type: Service bulletin
- NHTSA id: 10136411
- Published by NHTSA: 2018\-05\-14
- Manufacturer's number: TT8144EN
- Manufacturer's date: 2018\-04\-18
- NHTSA component: EQUIPMENT; STRUCTURE

## NHTSA's summary

Announces compatibility of aluminum main valve body in 3000 and 4000 series transmissions

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10136411-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10136411-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Body and frame, Equipment and accessories

## Vehicles listed

- ALLISON 3000 SERIES TRANSMISSION
- ALLISON 4000 SERIES TRANSMISSION
- ALLISON TRANSMISSION

JSON: [/v1/bulletins/10136411](/v1/bulletins/10136411)

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