Cummins has introduced its X10 engine. The new engine is designed deliver heavy-duty performance in a midsize package, Cummins said. The X10 is a mid-bore heavy-duty engine that replaces both the L9 ...

You might want to listen up, because Cummins engines have been playing you this whole time. By day? Sure, they look like your average, salt-of-the-earth diesel, hauling freight, towing trailers, and ...