April 30, 2025. Daimler Truck North America LLC (DTNA) and global power and technology leader Cummins Inc. announce availability of the industry’s first 15-liter natural gas engine in the Fifth Generation Freightliner Cascadia. Freightliner, a leading manufacturer of medium- and heavy-duty trucks and a division of DTNA, has opened orders for the Fifth Generation Cascadia trucks equipped with the Cummins X15N. The offering comes eight months after Cummins began full production of the X15N, marking the first of the Cummins HELM™ engine platforms. Each HELM platform engine model offered is specifically built and optimized to run on a specific fuel type, such as natural gas, diesel or hydrogen to meet customers’ needs.
“Natural gas trucks are becoming increasingly important for on-highway freight transportation,” explains Greg Treinen, Vice President of On-Highway Market Development at DTNA. “The Cummins X15N is the first natural gas engine purpose-designed with the power and torque needed for over-the-road customers. As we continue to offer innovative solutions, we’re proud to include this engine as a powertrain option for the Fifth Generation Freightliner Cascadia, meeting the needs of both our existing and new natural gas customers with a reliable, sustainable solution for their evolving demands.”
Production of the Fifth Generation Freightliner Cascadia, powered by the Cummins X15N, will begin in summer 2025. This engine will be available for the 126-inch bumper-to-back-of-cab (BBC) Cascadia in both sleeper and day cab configurations. Additionally, optional frame drilling prep configurations for frame-mounted and back-of-cab-mounted CNG fuel tanks will be offered to support customer range needs.
The X15N is certified at 50mg NOx and was built specifically as a natural gas engine. The X15N features up to a 10% improvement in fuel economy over Cummins’ 12-liter natural gas engine with similar rating and duty cycle. The X15N delivers the performance, durability, and power required in a variety of heavy duty and vocational applications and is an excellent alternative for fleets looking to significantly reduce their carbon footprint.
More information in www.usgasvehicles.com
