Posted: August 3, 2016 in Kenworth

CUMMINS ENGINE COMPANY will be offering two X15 engines for 2017.  Both engines build off the legacy of CUMMINS ISX platform and offer a variety of design and performance improvements.  These new engines will exceed the U.S. Environmental Protection Agency’s 2017 greenhouse gas and fuel efficiency standards.   While the ISX platform has only one 15-liter starting option, the X series offers two.  One is the fuel efficient X15 efficiency series geared toward line-haul and regional markets, and the other is the X15 performance series built for heavy-haul, vocational, and other demanding applications.  Cummins made several hardware changes to improve performance on the X15 performance engine, including a high-flow EGR cooler and piston cooling nozzles and exhaust valves to improve reliability.  The X15 performance boasts from 485 to 605 horsepower ratings, torque ratings up to 2050lb-ft and as much as 600 braking horsepower.  The X15 efficiency series ranges from 400 to 500 horsepower and 1450 to 1850 lb-ft of torque.


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