This is a pump I came very close to buying for only £100.The engine is a Mercedes one, as the van is the same as a Sprinter. Its a 2 inlet port/1 exhaust port per cylinder x-flow. Its RWD too, so unlikely that the FWD bellhousing will mate up to it.I tried a couple of years ago to find out about fitting in a Mk3, but the research basically found i'd have a lot of trouble with it.
Czech it out!