Daimler Truck’s US unit Freightliner will offer the new Cummins X15N natural gas engine in its heavy duty Cascadia trucks.

The X15N is designed for heavy duty and on highway truck applications, with 400 to 500 hp and 1,450 to 1,850 lb-ft of torque.

Production will begin in 2025.

“The X15N, an industry first big bore natural gas powertrain with power and torque curves almost identical to diesel, will help long haul fleets see improved economic and environmental performance,” claimed Cummins’ Jose Samperio.

Freightliner claimed the engine could reduce lifecycle greenhouse gas emissions ranging from a 90% reduction to carbon neutral, or carbon negative, depending on the bio-source and waste feedstock used to produce the fuel.

The X15N achieves lower NOx levels than the 2024 EPA and CARB standards and has 1,850 lb f. of peak torque output.

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