Cummins Inc. has announced it will launch what it claims is its most efficient heavy-duty diesel engine to date.

As the next product in the Cummins HELM 15-liter fuel agnostic platform, the diesel X15 will be compliant with US EPA and CARB 2027 aligned regulations at launch. It will serve the heavy-duty on-highway market in North America.

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José Samperio, Vice President, North America On-Highway at Cummins said: “We have applied our decades of experience with the X15 to our next-generation product and believe these investments will serve our customers well into the future.”

Maintaining the traditional reliability and lower operating costs that have met the needs of a diverse customer base since the inaugural X15 launch in 1998, Cummins says the next generation, advanced diesel X15 will feature improved greenhouse gas and fuel efficiency benefits while retaining the same ratings of the current X15 (up to 605 horsepower and 2,050 ft-lb of torque) and optimising powertrain integration with Eaton Cummins and Cummins-Meritor.

Jane Beaman, Vice President Global, On-Highway Business, Cummins: “Today, we re-introduce our fuel agnostic engine platforms with a name that captures the innovation that powers us forward: the Cummins HELM™ platforms.”

The X15 engine is designed to have the capability to meet future emissions regulations beyond 2027 without the need for significant architecture changes.

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The firm says this investment will help the company maintain technology leadership for the next decade as it continues to fund future research and development in hydrogen and alternative fuel engines, battery electric and fuel cell powertrains.

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