Carter Fuel pump numbers are located on the side of the mounting flange .They will begin with ‘M’ and end with “S” or “SA”.
For identification purposes we will be using the “S” at the end : Example ” MxxxxS”
This fuel pump kit is compatible with:
Ford: 1963-1964 6cyl , 223″
Pump Number: M3504S,
MADE IN U.S.A.
Then & Now Automotive Fuel Pump Kits are made with all new fresh stock of materials intended for use with today’s fuels, including fuel with alcohol content.