Are D15 rebuild kits all the same?

Hi guys, so i am rebuilding my D15b4 and the easiest kits to get a hold of are the ones on ebay in the US. In the title they all say d15b rebuild kits and list D15b7, d15b1, d15b2 etc. Is the Australian delivered d15b4 all the same internals and oil/water pump and timing belt, gaskets etc as the american delivered models? It is my understanding they are but just want to confirm.

Cheers.

This is the one i am looking at
http://www.ebay.com.au/itm/88-91-1-5...256a5eb&_uhb=1