Cummins announces Model Year 2027 Product Launch Plan

COLUMBUS, Ind. - Cummins Inc. announced on Thursday, July 23, the 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.

“Our long-term product strategy has not changed,” said Jennifer Rumsey, Chair and Chief Executive Officer of Cummins Inc. “This is about improving the transition, not changing the destination.”

The company plans to begin limited production of its Model Year 2027 X15 engine in January 2027. Production will ramp progressively, with full production expected to begin in Q4 2027. During the transition, the current-generation X15 engine will remain available.

Cummins plans to begin limited production of the Model Year 2027 X10 in January 2027, with full production expected by Q3 2027. During the transition, the current X12 and L9 engines used in truck and transit bus applications are expected to remain available. 

The Model Year 2027 X10 and X15 platforms are designed to deliver improved fuel economy, similar diesel exhaust fluid consumption, and the proven, field-tested reliability customers need to complete their missions.