Its a conventional water pump to replace the hydro pump. since the 2jz give out lil space to the hydro pump, its a hard decision and more money to change this one(also hav to change the timing belt one go). Initial plan was to bypass the hydro lines goin to the hydro fans and goin directly to reservior..
part number: 16100-49847(for turbo)
fyi part number 16100-49837 is for non turbo