Stanadyne advances propane direct-injection system to production readiness

Stanadyne, a global provider of fuel delivery systems, in collaboration with the Propane Education & Research Council and Katech, has transitioned its propane direct-injection (DI) technology from prototype to a production-ready solution.

The system was featured in a 2024 Chevrolet Silverado 2500HD at ACT Expo 2026 and is targeted for commercial availability in the fourth quarter of 2027.

The DI system utilizes a high-pressure fuel pump and advanced injectors to deliver propane autogas as a liquid at pressures up to 200 bar directly into the combustion chamber. Integrated into the GM 6.6-liter V8 engine, the system produces 401 horsepower and 464 pound-feet of torque, maintaining a towing capacity of up to 17,370 pounds.

Learn more: stanadyne.com