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.

Mack Trucks is revamping its vocational truck lineup on the heels of the launch of the Mack Pioneer on-highway truck last year. The all-new Mack Keystone, introduced at ConExpo-Con/Agg 2026, succeeds ...

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.