COLUMBUS, Ind. – Cummins Inc. announced Monday that it will launch the next engine in the fuel-agnostic series, the X10, in North America in 2026. The engine, named as part of the X engine family, is uniquely positioned to replace both the L9 and the X12 with the versatility to serve both medium and heavy-duty applications.
It will be compliant with U.S. EPA’s 2027 regulations a full year early. The diesel version will be first available, with versions for gaseous fuels introduced later. This 10-liter displacement product slots into Cummins’ portfolio complemented by the B6.7 and X15 and serves vocational, transit, pickup and delivery, and regional haul customers.
The new X10 diesel will emit 75 percent less NOx emissions than required at launch in 2026. It will be compliant with the U.S. EPA’s 2027 regulations while providing a step change in fuel economy improvement. For more information about the Cummins X10 engine, go here.
