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Werner Enterprises and Cummins partner to integrate Cummins’ 15L natural gas and hydrogen engines

Werner Enterprises, a premier transportation and logistics provider, and Cummins Inc. announced that Werner will begin validation and integration of Cummins’ recently announced 15-liter natural gas and 15-liter hydrogen internal combustion engines in its vehicles (earlier post). Cummins will begin integrating these new powertrains in Werner trucks in the second half of 2022, starting with the 15-liter natural gas product.

The 15-liter natural gas engine announced in October of 2021 can be paired with a Cummins Eaton Automated Transmission Technologies Endurant HD Transmission and Cummins Fuel Delivery System, ensuring a purpose-built and fully integrated natural gas powertrain. Other transmission pairings will be available at launch for specialized applications.

The 15-liter engine will offer ratings up to 500 horsepower and 1,850 ft-lbs of torque, while not requiring selective catalytic reduction (SCR) to meet 2024 California or Environmental Protection Agency emission standards, providing a potentially carbon-negative solution when powered with renewable natural gas (RNG).

Hydrogen engines offer OEMs and end-users the benefit of adaptability by continuing to use familiar mechanical drivelines with vehicle and equipment integration. This mirrors current powertrains while continuing to provide the power and capability for meeting application needs.

Additionally, the 15-liter hydrogen engine can use zero-carbon green hydrogen fuel, produced by Cummins-manufactured electrolyzers. The projected investment in renewable hydrogen production globally will provide a growing opportunity for the deployment of hydrogen-powered fleets utilizing either Cummins fuel cell or engine power.



All the truck companies should build electric trucks with a standard charge port and a modular (HEC) Hydrogen Energy Cell area that can add range via the charge port. With much higher efficiency than H-ICE, Fuel cells would likely be the best system to power the HEC. This would allow the lowest energy cost to used at all times.


Low efficiency H-ICE is a solution in search of a problem.

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