# Service bulletin TSB220122

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: 10250890
- Published by NHTSA: 2024\-03\-02
- Manufacturer's number: TSB220122
- Manufacturer's date: 2024\-02\-29
- NHTSA component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING

## NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of Exhaust Gas Recirculation \(EGR\) coolant leaks caused by corrosion of the gas tubes due to certain truck wash chemicals. This is a revision to a previously submitted communication.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-10250890-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-10250890-9999.pdf)

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

## Components

Engine, Exhaust and emissions

## Vehicles listed

- CUMMINS ISX12
- CUMMINS ISX12 G
- CUMMINS POWER GENERATOR
- CUMMINS X12
- CUMMINS X15

JSON: [/v1/bulletins/10250890](/v1/bulletins/10250890)

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