the VP44-equipped 24-valve edition of the 5.9-liter was highly desirable. There are a lot of late-2000s Cummins purists out there, but their favorite version of the engine only lasted until 2003 ...

Cummins engines were dominant in agriculture long before their debut in heavy-duty trucks. The 12-valve 5.9-liter Cummins I-6 engine was developed and installed in Dodge pickups starting in 1989 ...