# Service bulletin TSB120053\-110116

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: 10110338
- Published by NHTSA: 2017\-08\-04
- Manufacturer's number: TSB120053\-110116
- Manufacturer's date: 2016\-11\-01
- NHTSA component: ENGINE AND ENGINE COOLING; EQUIPMENT:MECHANICAL

## NHTSA's summary

This Technical Service Bulletin announces a wide valve camshaft lobe and valve rocker lever roller release to improve the robustness of the ISX valve camshaft. The camshaft lobe and rocker lever rollers were widened to reduce the contact stress between the camshaft and rocker lever rollers.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10110338-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10110338-0001.pdf)

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

## Components

Engine, Equipment and accessories

## Vehicles listed

- CUMMINS ISX15

JSON: [/v1/bulletins/10110338](/v1/bulletins/10110338)

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