# Service campaign C7131

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 campaign
- NHTSA id: 11023889
- Published by NHTSA: 2025\-10\-04
- Manufacturer's number: C7131
- Manufacturer's date: 2025\-09\-03
- Campaign id or software version: C7131
- NHTSA component: ENGINE

## NHTSA's summary

This Warranty Field Campaign is being issued to address a potential concern for engine performance relative to the Wastegate Control System functionality on certain X15N engines. This field action authorizes certified repair locations to replace the Wastegate Control Valve and Block and update the Engine Control Module calibration on eligible engines.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11023889-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11023889-9999.pdf)

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

## Components

Engine

## Vehicles listed

- CUMMINS X15N

JSON: [/v1/bulletins/11023889](/v1/bulletins/11023889)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20campaign%20C7131&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11023889&vehicle=Service%20campaign%20C7131)