That looks like the AC Delco water pump since the vanes go all the way out to the end of the rotating plate to yield maximum flow, which I want most at low to medium engine speeds such as in congested traffic conditions to keep my engine cool with the a/c running.under high temperature conditions.It is sold under several different names but they are made by the GM subsidiary. I have tried several different ones, but it is the best in my experience.
The last one I bought came from NAPA under their own brand name.
Steve Albu