Cummins has been at the forefront of the diesel engine market for more than 100 years. At this point, an argument could be made that there are few manufacturers whose products are as well respected ...

Diesel truck fans may have heard the legends surrounding the 12-valve Cummins. Found in trucks like Dodge Rams from 1989 to 1998, its fully mechanical fuel system and rugged injectors are celebrated ...

As much as we might like the sound and the fury of a big, open exhaust on our diesel engines, does it necessarily flow better than a high-performance aftermarket system? Sure, a big, bad diesel rumble ...

We know what you're thinking; the title is a typo. But no, it's not. This truck really is an '01 model, originally equipped with a 24-valve Cummins before owner Chris Werner swapped it for a 12-valve ...

Diesel trucks are meant to work, but all that torque can be used for fun, too. Not only is there a huge diesel drag racing scene, but there’s also sled-pulling, which has been one of rural America’s ...