great idea to have a spare set or use as a replacement
The Part Number of the Carburetor is F684061
3L V6 Stringer & Cobra (Rod had more bends) was typically P/N 61112
Filler neck Part # 275000077
Likely Compatible Part numbers
Mercury Outboard 300 350 1960 Mark 35 Fuel Pump Diaphragm 23009A1 23009 23008 Pulley great idea to have aThis is From a 1960 Kiekhaefer Mercury 300 E 4 cylinder Thunderbolt (serial # 127258) Item Condition: Good Condition Please Inspect Pictures for condition Untested Part#'s Fuel Pump Assy. 23009A1 Fuel Fitting: 22 22993 Fuel Fitting: 22 22995 Other Related Models: Mark 35AM, Mark 35AE, Mercury 300M, Mercury 300E, Mercury 350M, Mercury 350E, Mercury 350M 1, Mercury 400E 1271885 thru 1356947 Years: 1958, 1959, 1960, 1961,1962 30hp 35hp, 40hp Yours should