Allison Transmission Equips Hydrogen-Fueled Truck Showcased at COMVEC

Allison Transmission’s 4000 Series transmission is integrated with a Class 8 truck featuring a Hydrogen Internal Combustion Engine (H2-ICE), aiming for a 99.7% CO2 reduction, as showcased at SAE COMVEC.

Indianapolis, United States- Allison Transmission Holdings Inc., an American manufacturer of commercial duty automatic transmissions and hybrid propulsion systems has integrated its 4000 Series transmission with a Class 8 truck featuring a Hydrogen Internal Combustion Engine (H2-ICE), showcased by Southwest Research Institute (SwRI) at SAE International’s Commercial Vehicle Engineering Congress (COMVEC) in Schaumburg, Illinois. The H2-ICE vehicle exceeds EPA/CARB 2027 and Euro 7 emissions standards.

Mr. Ryan Milburn, Vice President, Product Engineering, Allison Transmission, said, "The integration of our Allison 4000 Series in the H2-ICE vehicle demonstrates the critical role internal combustion engine (ICE) powertrain solutions can and will play in moving the industry closer to ultra-low emissions. From our fuel-agnostic conventional transmissions to electric hybrid and fully electric propulsion systems, Allison proudly offers the power of choice for customers aiming to achieve sustainability goals without compromising performance or reliability."

Allison's fully automatic transmissions are fuel-agnostic, compatible with gasoline, natural gas, propane, and hydrogen. They enhance sustainability while maintaining fleet productivity and efficiency. Allison's power shift technology and torque converter boost startability and drivability, outperforming manual and automated manual transmissions (AMTs).

First unveiled at the 2024 ACT Expo, the truck is part of SwRI’s H2-ICE Consortium, launched in November 2022. The consortium, involving major transportation industry players, aims to showcase hydrogen-fueled internal combustion engines as a solution for decarbonizing transport. H2-ICE vehicles reduce CO2 emissions by 99.7% compared to diesel, meeting future U.S. and European zero-emission standards.