Cummins is one of the big engine makers powering the commercial trucking industry, and it makes quite a few power plants geared toward medium-duty trucks.

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Ram started using Cummins engines in 1989, beginning with a humble 5.9-liter, turbodiesel, inline-six motor rated at 160 horsepower and 400 pound-feet of torque. This particular engine remained in ...

The first engine expected to roll out in 2024 will be a 6.7-liter gasoline-ready option, which Cummins sees as a good fit for pickups and other vehicles needing “diesel-like durability and ...

The next upgrade of the 6.7-liter Cummins diesel engine came in 2018. Horsepower output stayed level at 385, but maximum torque for the high-output version jumped from 865 to 930 pound-feet.

Cummins has built more than 1.7 million 5.9L and 6.7L engines since 1989. Beginning in 1992, production of the 5.9L shifted to Cummins' Midrange Engine Plant (CMEP) in Columbus, Indiana, and this ...

Ram started using Cummins engines in 1989, beginning with a humble 5.9-liter, turbodiesel, inline-six motor rated at 160 horsepower and 400 pound-feet of torque.