The Cummins 5.9-liter diesel engine has powered Ram trucks since 1989. It went through a few changes over its lifespan, but ...

Cummins’ venerable 5.9-liter diesel engine has undergone many revisions. Here are some highlights of each one. What is a 5.9-liter Cummins diesel engine? Well, for hardcore enthusiasts ...

It was at that point in time that Cummins ushered in the 6.7 as the replacement for the 5.9 Cummins diesel which had peaked at 325 horsepower and 610 lb-ft of torque. By mid-2013, horsepower ...