WTB: 1990 Miata Oil Pump

I'm in in the middle of freshening an NA Miata motor and the oil pump that I picked up from Ebay will not fit.

There seems to be a difference in the NA years part.
The ebay oil pump will not fit on the crank. I looked at the old pump and it has an opening that is bigger than the new ebay pump.

I see a physical difference on the inner plate, there are 7 bolts on the original oil pump, and I see 6 bolts on the new ebay pump.

I don't know exactly what year the motor is, but I'm guessing it is a 1990, and it seems like all the auto stores do not carry a 1990 oil pump in stock.

Anyone happen to have a New 1990 Miata oil pump(with 7 bolts on the inner plate) that I can buy?

Jay Johnson

Try Stevan Boyd (Rogue)

Its a Short Nose Crank pump…..
I don't have new ones, but do have good used.
Thats common, I just built an engine yesterday with one.
New:http://parts.arlingtonmazda.com/prod...52d100%29.html