CatalogAccessoriesPropellerSearch By MotorMercury9.9HP Accessories 9.9HP Select Category2 Stroke (8 Spline)4 Stroke Bigfoot/Sail (10 Spline)FourStroke (12 Spline)FourStroke (8 Spline)FourStroke Bigfoot (14 Spline)2 Stroke (8 Spline)4 Stroke Bigfoot/Sail (10 Spline)FourStroke (12 Spline)FourStroke (8 Spline)FourStroke Bigfoot (14 Spline)