Hey guys I have this water pump, not sure what its for... Im almost sure its for an SR engine but dont know if its for the FWD SR20DE/SR20DET or RWD SR20/SR20DET. Any help appreciated.

http://img.photobucket.com/albums/v286/ViruzOne/p_00516.jpg

See the 53J notation? That leads me to believe it is for the DE/DET engine block. I have never messed with RWD.