A first-gen 5.9 Cummins will set you back a pretty penny today, but the engines weren't perfect, with a number of serious ...

or a powerplant that had the performance characteristics of a big-rig's engine: a 5.9-liter Cummins diesel. With the engines installed in Dodge Ram rigs, sales went through the roof. Coupled with ...

If your vehicle uses a third-generation Cummins engine, it could fall victim to one of the issues other customers have ...

Even though the 5.9L Cummins and 7.3L Power Stroke diesel engines are no longer in production, they're still popular engines.