The all-new Mack Keystone, introduced Monday night at ConExpo-Con/Agg 2026 in Las Vegas, succeeds the Pinnacle, which has been a staple of Mack’s vocational portfolio for more than 20 years.

They also power Volvo's trucks around the world as well as Renault trucks in Europe and other markets. (In the Volvo products there's currently a bigger engine: the 16-liter D16 – see next month's ...

The new Mack Pinnacle with its all-new MP7 engine is a prime example of what the '07 emissions regulations have wrought. What we have in this Mack is an all-new engine platform in an effectively ...

New 12.8-liter MP8 dieselin highway type MaxiCruise tuning makes up to 485 horsepower. It's strong and clean-burning. Maxidyne and Econodyne versions have somewhat different operating characteristics.