OK, with the new pictures you added, now I have a better understanding. Now I think you do have the correct new water pump.
From this picture you posted:
View attachment 72987
That is the diverter valve for the turbocharger.
Seeing the new photos, I see that you removed the pump portion of the assembly, and still will need to remove the rest of it.
View attachment 72988
You are probably going to have to work on this from both the top side and the underside of the engine. In the picture above you need to remove the rest of the pump assembly with the bolts circled in purple. I'd bet that there is at least 2 similar bolts on the underside of the pump assy.