Skip to content

Updated Listing of Aftermarket Systems for LD & HD Vehicles

The Available Vehicles and Engines document, the most frequently viewed and downloaded document on the NGVAmerica website, has been updated to include recently approved natural gas conversion systems. The document is designed to assist consumers and businesses choose a conversion system for new or in-use vehicles. Information is organized by certified or approved light duty and heavy duty chassis vehicles, as well as by certified or approved heavy duty engines. The individual sheets are further organized by OEM, model year, and engine size for easy navigation. All of the systems listed have been either certified or approved by the U.S. EPA or CARB. Every effort is made to ensure that the listings are comprehensive and accurate. If we have missed anything, please let us know. To view the document, visit the NGVAmerica website at Questions about systems listed in the document should be directed to the aftermarket manufacturers.