inline six

Editor’s note: The 1980s was a transition period for engine technology in America. The iconic carburetor gave way to fuel injection. Cubic inches were out, and liter designations marked a new era for engines — one when power and fuel economy were no longer mutually exclusive. This modern engine age has featured some of the best innovation, technology, and performance

It was originally designed and built for commercial trucking applications. But then Chrysler dropped it into Dodge Ram pickup trucks in 1989. Legions of people have been in love with the 5.9-liter, inline-six Cummins turbo diesel engine ever since. History General Motors and Ford had already entered the diesel marketplace by the time Dodge partnered