# Service bulletin T1979B

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: 10143713
- Published by NHTSA: 2018\-08\-20
- Manufacturer's number: T1979B
- Manufacturer's date: 2018\-07\-03
- NHTSA component: EQUIPMENT; ENGINE

## NHTSA's summary

This Temporary Repair Practice authorizes the inspection and replacement of all rocker levers on identified Engine Serial Numbers should any one rocker lever be found as failed. This is a revision to a previously submitted communication.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10143713-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10143713-0001.pdf)

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

## Components

Engine, Equipment and accessories

## Vehicles listed

- CUMMINS ISC
- CUMMINS ISL
- CUMMINS L9

JSON: [/v1/bulletins/10143713](/v1/bulletins/10143713)

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