These polished aluminum water pumps are a great addition to any 1949-53 Ford Flathead, Each pump comes with severe-duty roller and ball bearings, close tolerances, and modular impellers to provide maximum flow, reduce cavitation, and extend pump life, They feature a 5/8" wide v-belt pulley common with aftermarket pumps, The pumps also incorporate the motor mount flange, making them a direct replacement, The polished finish means a bright and shiny look, with the ability to easily clean and re-polish as needed.