Discussed a few months ago. It isn't in the same class as the engines in Ram trucks, it's a V8 that's more light duty.

Story is, Nissan was going to sell Dodge 1500s as Titans but the deal fell through with Fiat so Nissan designed the new truck themselves. No talk of whose Diesel engines they'd use

Sometime later, Cummins pitched the 5.0 V8 to Dodge, but it didn't meet Dodge's mpg requirements so Dodge said "No". Cummins then went to see Nissan and Toyota. Both said "Yes". The Nissan got to market first. 310 hp and 555 lb-ft torque are pretty good, and the Titan is rated to tow 12,000 lb. It's not competing with the Ram 2500/3500 and the Super Dutys but aimed at folks who want a little more truck than a half-ton, but not one of those behemoths.
R.