Windshield Washer Reservoir for 65 Dart 270

Measurements are the same as my original, but numbers on the back are different and my cap is blank. I think I read somewhere that the original caps were blank. However, I am still interested. Is there a pump that goes with this?

Numbers/letters on back of mine:
AATK
2497502
MS DB 24
Lot 60
11285