Freightliner is working with Cummins to offer the new Cummins X15N natural gas engine (earlier post) in its heavy-duty Freightliner Cascadia trucks. The X15N is the first natural gas engine to be designed specifically for heavy-duty and on-highway truck applications, with 400 to 500 hp and 1,450 to 1,850 lb-ft of torque.

Freightliner will offer the new X15N in the Cascadia 126" BBC, in both sleeper and day cab configurations. Production is targeted to begin in 2025. The Freightliner Cascadia is the market-leading Class 8 vehicle featuring high efficiency, advanced technology and best-in-class safety with the Detroit Assurance suite of safety systems.

When operating on renewable natural gas, the X15N engine can significantly reduce lifecycle greenhouse gas emissions of heavy-duty trucks. This can range from a 90% reduction to carbon neutral, or even carbon negative, depending on the bio-source and waste feedstock used to produce the fuel.

The new X15N achieves lower NO_x levels than the 2024 EPA and CARB standards. The 1,850 lb-ft. of peak torque output provided by the X15N will allow for optimum performance when paired with the Eaton Cummins Endurant HD N Transmission and the availability of optimized EX ratings.