1963-1965 Ford-Mercury.    NEW OLD STOCK RECONDITIONED 260-289 FUEL PUMP.     This is an ORIGINAL FORD REMANUFACTURED PART.  It is a CARBURETER Pump with X markings. Stamped 3576SC and dated C 3 on the flanges. The codes are for a big-block engine, but this has the small block actuator arm and will only work on a small block. It was Typical of Ford to use whatever housing available when remanufacturing these.   The pump is in Excellent condition. It should work fine but the seals should be inspected due to age. you should address any potential leak issues before installation.   This is an Excellent NOS Remanufactured pump.  Please email with any questions.         022124-2            WE HAVE AN EBAY STORE WITH THOUSANDS OF ORIGINAL and NOS FORD PARTS. CHECK IT OUT.