A first-gen 5.9 Cummins will set you back a pretty penny today, but the engines weren't perfect, with a number of serious ...

What's going on with the Jeep Wrangler diesel concept vehicle on display in the Mopar booth at the SEMA Show ... We've heard Cummins say they're building a 4.2-liter diesel for light-duty ...

Nissan and Cummins are building a diesel Titan XD to attempt a land-speed record run, and they're showing an early version of the slippery truck at SEMA ... the first mass-market, pure-electric ...