While you may be used to seeing pulling trucks, or even tractors in Diesel Power, we thought we'd introduce you to the baddest of the bad-20,000-pound sled pulling semitrucks. Last summer at an OSTPA ...

While Clessie Cummins and business partner William G. Irwin didn't invent the diesel engine, they saw its budding future and in 1919 started Cummins Engine Co. The diesel engine has undergone several ...

Cummins Inc. has agreed to pay a more than $1.67-billion penalty to settle claims by regulators that the engine manufacturer unlawfully altered hundreds of thousands of pickup truck engines to bypass ...

At the start of 2025, Cummins unveiled its updated lineup of heavy-duty (HD) trucks under the Ram 2500 and Ram 3500 badges. Like the smaller Ram 1500, the larger HD models received a comprehensive ...

Called the B6.7 Octane, Cummins' first gas engine is a turbocharged 6.7-liter inline-six that runs on 87-octane gasoline. Output ranges from 200 horsepower and 600 pound-feet of torque to 300 hp and ...