Carb Flange Sealing 'O' Ring, for use on Carb models: Concentric 6 & 9 Series.
O.E.M: 622/101, 6/101, 99-0522, 06-1900
(Carb flange sealing 'o' ring fits between the carb and the engine. Please use the diagrams in the 'Helpful Tips' page)