For the first time, 13-liter engines have become the number one choice of U.S. Class 8 truck customers, and Mack is part of the heavy-duty truck manufacturing group that sells more 13-liter engines in the U.S. than anyone else. The Mack MP7 engine is also the top-selling 11-liter engine in the U.S.

"We're seeing a shift in the market to less than 15-liter engines as customers increasingly focus on operational efficiency," Kevin Flaherty, Mack senior vice president - U.S. and Canada said. "Mack's leadership in the 11-and 13-liter engine segments also reflects strong customer response to our MP series engines with ClearTech SCR Technology and growing demand for our MACK mDRIVE transmission.

The powertrain technologies we have in the market today allow us to deliver tremendous horsepower and torque through smaller liter engines while offering significant savings, both in terms of upfront cost and fuel efficiency."

For more information visit