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 ...

Diesel engines are common in pickup trucks, like the Cummins 6.7- and 5.9-liter engines that power some Ram trucks. Ford and Navistar teamed up to bring the venerable 7.3-liter Power Stroke diesel ...

Since 1989, RAM (earlier Dodge RAM) has been using engines made by Cummins on their popular pickup trucks. The journey, which started with the first generation 5.9-liter 160 hp turbo diesel ...