# Service bulletin TSB210117

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: 10203303
- Published by NHTSA: 2021\-11\-08
- Manufacturer's number: TSB210117
- Manufacturer's date: 2021\-06\-09
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

This Technical Service Bulletin announces updates have been made to Service Manual Procedure 008\-018 in Section 8 for evacuating coolant from an engine and injecting coolant into an engine using the coolant replacer kit. This addresses multiple instances of cooling system contamination and coolant mixing have been observed in the field, resulting in damage to the cooling system components.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10203303-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10203303-9999.pdf)

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

## Components

Engine

## Vehicles listed

- CUMMINS L9

JSON: [/v1/bulletins/10203303](/v1/bulletins/10203303)

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