Cummins On-Highway Engines - Powering Mack Trucks


Choose a Cummins Engine for Your Mack Cab & Chassis

Leading Performance

Cummins’ fully integrated technology, from air handling to exhaust aftertreatment, allows us to optimize performance in ways that other manufacturers can’t match.


ADEPT™ Technology

The system continuously makes minor adjustments to speed, power and transmission gear to take advantage of vehicle momentum, maximizing efficiency and using less fuel while allowing the driver to concentrate on the road ahead. Read more »


World-Class Support

Cummins has the largest and most capable parts and service network in North America, with over 3,500 locations. Cummins Care is available 24/7 to assist you.

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