Google: Cummins 4bt ranger
This is a popular swap and you can end up with a Ranger that is actually worth more than it was before the swap, if you wanted to sell it, which most don't, lol.
I would put a minimum cost of $7,000 to max. of $15,000 to do this swap
However......check your local state emissions requirements.
Diesels are required to meet emissions requirements now, it may or may not apply to a swap by year, but best to know before you go.
North American market was always about performance, diesel engines are all about endurance and economy.
The market here for non-commercial diesel vehicles is still a niche market, it is growing with turbo-diesel engines but still not mainstream.
So Ford didn't/isn't "missing the boat".
The Dual use, commercial/non-commercial, Ford F-Series trucks do have diesel engine options, although these wouldn't fit in a Ranger.
Ford has been making the International Ranger with only diesel engines for many years, 2006(Mazda BT-50) to present(now Ford T6)
These are slightly larger than our Rangers, closer to F-150 size so were never sold here.
Last edited by RonD; 10-26-2014 at 05:48 PM.