Fuel-injector-zhroFuel Injector

The proprietary fuel injector embodies years of research, design, and trade secret material science that allow for the high performance characteristics of the conversion kit.


Fuel System

The fuel system typically consists of tanks, compressor, fuel lines and a fuel conditioning system.  Select your choice of off-the-shelf fuel storage and delivery components based on fuel requirements.



Customized software interfaces with the engine and its control systems, board sensors and actuators  to monitor and control all aspects of engine, fuel system and other vehicle operation.

Key Benefits
  • Converts your Diesel Engine to use 100% Natural Gas
  • A non-invasive retrofit that can be completed in 8 hours
  • Oil is not contaminated by fuel, thus reducing engine wear
  • Replacement parts are easily sourced and affordable to maintain
  • Designed to meet the exact performance standards of its diesel counterpart
  • Allows your to drive a cleaner, greener, more fuel efficient vehicle
Pick the fuel that’s right for your application

The ZHRO™ Fuel Injector System’s combustion strategy is flexible and can be adapted to any natural gas fuel source. For applications where range anxiety is an issue, a higher density fuel can be used. For situations where cost is the biggest factor, the cheapest available fuel can be leveraged.

Equivalent Diesel Performance

The ZHRO™ Fuel Injector System provides an unprecedented transformation in natural gas engine technology. All of the legendary performance and reliability of the diesel engine is retained, while the additional environmental and cost advantages of a natural gas machine are added to the system.

Become a ZHRO™ Installer

Portland / Seattle / Tacoma

  • Access to our Industry knowledge

    The sales and marketing team at ZHRO™ has invested significant dollars to identify and quantify the market opportunity within each distributors’ territory.

  • Strong Marketing Platform

    With the ZHRO™ brand initiatives and Evotech’s local marketing efforts, we’ll offer you a targeted strategy.

  • Be an Exclusive ZHRO™ Partner

    Only an authorized ZHRO™ mechanic can Install the ZHRO™ Injector Kit. By Partnering with us, you can offer an exclusive product and significantly grow your business.

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