One heavy-duty engine choice transformed a basic pickup into a platform that significantly reshaped diesel performance and aftermarket tuning culture.

The 5.9-liter Cummins is diesel royalty. It's the reason thousands of Ram trucks from the late '90s and early 2000s are still climbing hills, pulling trailers, and terrifying Priuses in the fast lane.

Cummins diesel engines and the Ram truck combined forces some years ago, creating what some would describe as the best partnership since peanut butter and jelly. The first-gen Cummins engines cost a ...

Cummins has been building pickup truck engines since 1989, which is when it first offered its legendary 359 cubic-inch inline-six engine known as the 6BT, often considered one of the best American ...

If you ever want to start an argument between diesel enthusiasts, just bring up the topic of the 6.7 Cummins and PowerStroke diesel engines and see the sparks fly. It's a rivalry as old as time itself ...