# Service bulletin SEPD166500

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: 10117889
- Published by NHTSA: 2017\-09\-20
- Manufacturer's number: SEPD166500
- Manufacturer's date: 2013\-09\-16
- NHTSA component: WHEELS:LUGS/NUTS/BOLTS/STUDS

## NHTSA's summary

CT11 and CT13 Valve Cover Bolts \- The valve covers on the CT11 and CT13 engines contain bolts that have different lengths.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2013/MC-10117889-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2013/MC-10117889-0001.pdf)

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

## Components

Wheels, Wheel nuts and studs

## Vehicles listed

- 2012 to 2017 CATERPILLAR CT660

JSON: [/v1/bulletins/10117889](/v1/bulletins/10117889)

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