SR20 oil pump

[Sileighty_85]

Originally Posted by WilloW

If you look at the FWD SR20DE front cover and the RWD SR20DET front cover side by side, you will notice that the two top most bolt holes are different (bolt to the head). On the FWD the bolt are accessible from the outside, as for the RWD these bolts are only accessible from inside of the head. Also, on the FWD front cover, one of the bolt hole is in a slightly different location in comparison to the RWD. There are other differences too, but those are the most noticable.

Then why are the part #'s Exactly the same? They already produced the SR20DE in Japan for some vehicals why would the spend more time and money to make it differnt if it already works?