The 6.7L Cummins is a formidable engine with impressive performance specs, but if you want to take it to the next level, ...

The 1st-gen truck did not receive Cummins power until 1989, and while capable, these earlier Cummins engines lack the impressive grunt on offer from later trucks. By this point, the first-gen had ...

The truck in itself was designed as one to be used in emergency response, military, and utility scenarios, but while burning hydrogen instead of regular fuel. To do that, it uses a Cummins ...