BIG-BLOCK ARCHITECTURE, OPTIMIZED FOR FUEL ECONOMY
With ratings from 400-500 hp, and 1450-1850 lb-ft of torque, the 2017 X15 Efficiency Series is well suited for fleets in freight applications that require fuel economy and the benefits of bigger block architecture. The economy-focused engine is optimized to deliver peak torque at lower engine speeds and enable down-speeding without compromising driveability.
An available SmartAdvantage powertrain package combines the Cummins X15 with the Eaton Fuller Advantage 10-Speed automated transmission for improved fuel economy.
Turbo Compounding Calculator
The new D13 with Turbo Compounding captures and harnesses energy typically lost through the exhaust to recover lost horsepower and improve fuel economy.Discover the Savings
Truck Models Using Cummins X15
Sold in the VNL, the Cummins X15 offers a fuel efficient, open-road alternative for customers who prefer big block engine architecture.