Range: 260-350hp.Resists corrosion.Can be used on gasoline powered Bravo Three sterndrives.Uses aft thrust washer 805100T.Forward thrust washer 80510T. Aft prop nut 11-805093.Forward prop nut 11-80592T. The paired forward blade is 8M0074871.Three-blade rear propeller works in tandem with the forward 4-blade propeller for enhanced holding, handling and boat control.