Cummins and PACCAR both make diesel engines found under the hoods of Peterbilt and Kenworth trucks hauling heavy loads across the U.S. How do they compare?

The Cummins B6.7 Octane gasoline-powered engine has 300 hp and 660 lb-ft of torque, but can't match the power output of ...

Discover how Cummins' B, L, and X Series engines power everything from buses to big rigs to pickups - and why each was built ...

Paccar Inc and Cummins Inc have announced an agreement for Cummins' 6- and 8-liter engines to be installed exclusively in Peterbilt and Kenworth's North American conventional medium-duty ...

The engine will be offered onboard Kenworth and Peterbilt trucks. Paccar and Cummins say the natural-gas technology is less polluting than diesel alternatives.

Detroit Diesel and Cummins are two of the market leaders in the world of diesel engines today, from pickup trucks to semi trucks. What's the difference?

Paccar Inc. announced it will offer the new Cummins Inc. X15N natural gas engine in its Kenworth and Peterbilt truck brands.

PACCAR will work with Cummins Inc. to offer the new Cummins X15N natural gas engine in Kenworth and Peterbilt trucks. The X15N is the first natural ga ...