It's a clean sheet build collaboration between Nissan and Cummins. It is all aluminum and build specifically for Nissan...Cummins is not selling it for use anywhere else as of now. That alone would make me leary. I work on lots of Dodge Cummins in the shop here, so I go to Cummins quite a bit for parts. Let me say they are less than thrilled. I'll stick with the bulletproof inline cast iron 6B series and leave the aluminum toys to Chevy, Ford, and, now Nissan.