New 15-liter platform will deliver heavy-duty 500 horsepower performance operating on renewable natural gas

PACCAR, a leading global truck manufacturer, announced it will work with Cummins Inc., a global power solutions provider, to offer the new Cummins X15N natural gas engine in Kenworth and Peterbilt trucks. The X15N is the first natural gas engine to be specifically designed for heavy-duty truck applications with up to 500 horsepower output.

“We believe we can help our customers achieve their goals by lowering the barriers to fleet adoption of sustainable power solutions by using proven engine technology and leveraging existing infrastructure, and giving them affordable options for their business goals,” said John Rich, PACCAR chief technology officer.

Together, with several customers including FedEx Freight and Knight-Swift, PACCAR and Cummins will demonstrate the ability to achieve low-to-zero carbon emissions for long-haul transport using internal combustion engine technology and operating on renewable natural gas (RNG).

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“The X15N is essential to our commitment to help customers reach net-zero greenhouse gas emissions and to improve NOx. Importantly for the customer, the X15N will reduce the cost of adopting low emissions technologies for their fleet, and gives them the confidence to do so, built on the strong foundation of more than 30 years of experience with natural gas,” said Srikanth Padmanabhan, Vice President and President, Cummins Engine Business.

When operating on RNG, also known as biomethane, the X15N engine will be able to achieve major reductions in the lifecycle greenhouse gas emissions of Peterbilt and Kenworth trucks. This can range from a 90 percent reduction to carbon neutral, or even carbon negative, depending on the bio-source and waste feedstock used to produce the fuel.

The new X15N is capable of lower NOx levels than the 2024 EPA and CARB standards. Equally impressive is the 1,850 ft-lbs. of peak torque output provided by the X15N, which will provide optimum performance when paired with Eaton Cummins Automated Transmission Technologies HD and XD Transmission.

Source: FedEx