Mercury - Quicksilver Bravo Three 4-Blade Stainless Steel Propeller 16" Diameter x 19" Pitch Left-Hand Rotation 4-Blade Stainless Steel Matte Finish 8M0123400. Overview. There's a distinct feeling when your boat grips the water just right when every throttle push translates to pure, effortless motion. That's exactly what the Quicksilver Bravo Three 4-Blade Stainless Steel Propeller ( 8M0123400) delivers. Designed with precision and balance in mind, this prop brings you unmatched control, acceler