# Service bulletin CMI\-R7N6Z\-12

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: 10184067
- Published by NHTSA: 2020\-12\-14
- Manufacturer's number: CMI\-R7N6Z\-12
- Manufacturer's date: 2020\-11\-05
- NHTSA component: EQUIPMENT; ENGINE; EQUIPMENT ADAPTIVE/MOBILITY

## NHTSA's summary

This is a representative communication between the Cummins producing plant to affected OEMs and vehicle manufacturers regarding the potential issue of a noise emanating from the engine gear train in certain ISB6.7 engines. The engine plant pursued corrective action to with affected OEMs at their facitilies.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10184067-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10184067-9999.pdf)

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

## Components

Engine, Equipment and accessories

## Vehicles listed

- CUMMINS ISB6.7

JSON: [/v1/bulletins/10184067](/v1/bulletins/10184067)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20CMI-R7N6Z-12&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10184067&vehicle=Service%20bulletin%20CMI-R7N6Z-12)