# Service bulletin T7073

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: 11034591
- Published by NHTSA: 2026\-07\-07
- Manufacturer's number: T7073
- Manufacturer's date: 2026\-06\-24
- NHTSA component: ENGINE

## NHTSA's summary

This Temporary Repair Practice is being issued to renozzle degraded fuel injectors with an improved helmet nozzle design on certain X15 certified engines at specific ReNozzle centers. This is an update to a previously submitted communication.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11034591-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11034591-9999.pdf)

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

## Components

Engine

## Vehicles listed

- CUMMINS X15

JSON: [/v1/bulletins/11034591](/v1/bulletins/11034591)

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