# Service bulletin TSB200018\-012320

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: 10171591
- Published by NHTSA: 2020\-02\-24
- Manufacturer's number: TSB200018\-012320
- Manufacturer's date: 2020\-01\-23
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of fretting of the head gasket combustion seal against the cylinder head combustion face. This causes wear scaring on the cylinder combustion face where the cylinder head contacts the combustion seal on the head gasket.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10171591-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10171591-9999.pdf)

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

## Components

Engine

## Vehicles listed

- CUMMINS ISX15

JSON: [/v1/bulletins/10171591](/v1/bulletins/10171591)

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