Cummins Inc. announced updates to its Model Year 2027 North American on-highway product launch plans following its review of the U.S. Environmental Protection Agency’s recently proposed changes to upcoming emissions regulations.
Based on the proposed rule, Cummins intends to use the implementation flexibilities outlined by EPA to support a measured transition to its new HELM engine platforms. The approach is designed to maintain regulatory compliance, support customer production schedules and provide additional time to ramp production in a disciplined manner that helps ensure a successful transition for the industry.
Cummins plans to begin limited production of its Model Year 2027 X15 engine in January 2027, based on individual OEM launch plans. Production will ramp progressively, with full production expected to begin in Q4 2027. During the transition, Cummins expects its current-generation X15 engine to remain available.
Cummins plans to begin limited production of the Model Year 2027 X10 in January 2027, with full production expected by Q3 2027, based on OEM launch plans. During the transition, the current X12 and L9 engines used in truck and transit bus applications are expected to remain available.
The company’s next-generation B platform is expected to launch in January 2028. The current B6.7 will remain available through 2027.
Cummins will continue working closely with OEMs, dealers, fleets and other partners to align product availability and launch timing. The phased ramp is intended to better support the transition to new technology.
