# Service bulletin T1949

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: 10123201
- Published by NHTSA: 2017\-11\-14
- Manufacturer's number: T1949
- Manufacturer's date: 2017\-10\-17
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

## NHTSA's summary

This Temporary Repair Practice is being issued to address belt jump resulting in belt shred on certain ISC/ISL Engines in PACCAR applications. The TRP allows for installation of an additional idler assembly and longer belt where these failure modes occur.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10123201-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10123201-0001.pdf)

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

## Components

Engine, Drive belts

## Vehicles listed

- CUMMINS ISC
- CUMMINS ISL

JSON: [/v1/bulletins/10123201](/v1/bulletins/10123201)

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