How do I know what size of water pump to purchase before taking the old one off
I have a 1995 blazer
4.3 liter
6 cy
4wl

whats Threaded Outlet mean? and also
Reverse Rotation Pump

yes it's a woman don't throw anything

 

welcome from Georgia!

 

B4 taking the old one off go to an auto parts store, not sure where ya live and what kind of stores you have near you, go to a real auto store and ask for a replacement water pump for your truck with that engine you gave us.. if you have a serpentine belt on your truck then its a reverse rotation pump!! by the meaning of serpentine belt, the belt operates all pulleys!!! not like the older cars pulleys back in the day had mostly their own separate belts...Hope this helps you

 

it did help thanks

 

Welcome! from down under.

 

welcome to the show. to bad the first parts store didn't know what the hell they were doing. then again, if they did, you may never have found us!
have a good one.

 

get a rebuilt A1 Cardone pump...casting number should be 828 on it....its an original style GM pump, just rebuilt.......