# Service bulletin TSB250015

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: 11014992
- Published by NHTSA: 2025\-03\-05
- Manufacturer's number: TSB250015
- Manufacturer's date: 2025\-02\-27
- NHTSA component: ENGINE

## NHTSA's summary

This Technical Service Bulletin describes the verification and resolution steps for the spark plug, rocker lever cover top seal and dust seal of the X15N engine which may allow water from engine wash operations to reach the spark plug, resulting in rust and misfire fault codes.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11014992-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11014992-9999.pdf)

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

## Components

Engine

## Vehicles listed

- CUMMINS X15N

JSON: [/v1/bulletins/11014992](/v1/bulletins/11014992)

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