Hard to say. The engine has been on the global market as the 3.2 Duratorq for about ten years, used in global model Transits, global Ford Rangers, and the Mazda BT-50 ute (Australia market). But the engine branded Powerstroke for the N.A. market has been substantially modified to meet our emissions specs. So we have to consider it as "new."
The basic engine is quite solid, rather heavily built for its size and power output, compared to similar sized diesels built for passenger cars in the global market. The new tech on top of this, common rail injection system, multi-spray injectors, variable geometry turbo, and emissions control add-ons have been used on other engines for a few years, but the total package is new.
The diesel engine use on the Ram Promaster by comparison, is ancient and thus fairly well proven. But it is also out of date with respect to today's performance (emissions and economy) expectations.
In considering the North American version of the Transit, I'm more curious about where Ford got the automatic transmission, than I am about the engines. In the rest of the world, it is a manual transmission truck.
