1966 - 1973 Merc 1101968 - 1972 Merc 2001974 Merc 40 (1 cyl)1975 - 1979 Merc 45, 4.51969 - 1973 Merc 75
Larger 1/4 turn fuel connector that plugs into all models 1955 thru 1987 (except 1961 6 HP and 1962-71 3.9 to 9.8 HP models).