Biohazard

...and on that note: What is the deal with water pumps? Is there really any difference between a water pump for an A/C vs. an non-A/C car? And if so, what would that difference be?

Reason I ask is that the replacement Gates water pump I installed over a year ago but am just now trying to plumb is giving me fits.

First, it has 3 water outlets instead of just 2 and the hole for the bypass hose fitting is HUGE. It is, no ****, a one inch NPT thread. The resto heater hose fittings I had purchased gave me a 3/4" NPT but it would just literally fall right into the pump if I tried to place it there. I'm pretty sure this pump ain't right but how do I find the right one?