# Service bulletin TSB210050\-031120

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: 10190754
- Published by NHTSA: 2021\-04\-26
- Manufacturer's number: TSB210050\-031120
- Manufacturer's date: 2021\-03\-11
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION

## NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of a lubricating oil leak at rear of cylinder head caused by a broken seal bead.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10190754-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10190754-9999.pdf)

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

## Components

Engine, Engine oil and lubrication

## Vehicles listed

- CUMMINS ISG12
- CUMMINS X12

JSON: [/v1/bulletins/10190754](/v1/bulletins/10190754)

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