The new Mack Keystone tractor might fill a void left by the Mack Pinnacle, yet it charts a new path for on-/off-highway with axle-back and -forward configurations. Also: How's this for a custom start ...

More than just a new truck model for Mack, the Keystone signals the OEM’s push to unify its highway and vocational platforms under a common architecture. Mack Trucks used the run-up to ConExpo-Con/Agg ...

A new Mack semi-truck aims to handle everything from construction sites to long highway runs, combining all-terrain capability with familiar cabin features.

The new Mack Keystone, introduced at ConExpo 2026, succeeds the Pinnacle, which has been a staple of Mack’s vocational portfolio for more than 20 years.

The Mack Granite and Keystone models feature Mack's new MP13 engine with up to 540 hp and 1,950 lb.-ft. of torque, offering improved fuel efficiency. Interior designs focus on driver comfort, offering ...

The thing about storied brands is that they know that they will need to continue to evolve to hold our attention. So, what better way for legacy auto manufacturers like Mack to show us they're still ...