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).

Fuel Pump Replacement Kit for 1976-79 4HP & 4.5 HP models equipped with accessory fuel pump and 25SS models which use later style pump with small round body.