Water Pump Suggestion

The water pump I got from Napa was a rebuilt Factory pump that had the pentastar on it. And also had some Factory numbers that called it out as some kind of special water pump can't remember what was special about it but when I looked at numbers up online people wanted big bucks for them I mean for a water pump... anyways it wouldn't hurt to go to the store and open up the box and see what they have you can always say you don't want it...