According to the 1952-53 Kaiser supplement to the 1951 K-F Shop Manual, 1953's were equipped with AC #9616 double-action pumps (with vacuum booster) on the deluxe models (Manhattans had single action AC pumps because of the electric wipers, except for a small run with the double action pump due to parts shortages). These not only have the upper run for the vacuum boost the vacuum wipers need, they also had a fuel filter/sediment bowl at the bottom of the fuel run. Carter M888SA were factory for 1952 models according to the same source, when vacuum boost was required. The current AC version that NAPA sells (under different brand name) does not have the filter/sediment bowl at the bottom.
FID is correct about the Carters being considered the better of the two pump types based on what I have found out. You can get rebuild kits with CURRENT 10% ETHANOL GASOLINE fittings & seals if you look around.