Mercury Alpha 4 14.5" Diameter X 18 Pitch Propeller 48-834853A45 The Mercury Alpha 4 four-blade aluminum prop is an outstanding propeller for runabouts as well as daycruisers. This propeller is great for getting on plane quicker and staying on plane at lower speeds. Features: Great watersports prop.; Durable high-gloss phantom black finish.; Specifications Diameter: 14.5; Pitch: 18; Rotation: Counter (Left Hand); Number of Blades:; Material: Aluminum; Equipped with Flo-Torq II hub kit.; The Mercury Alpha 4 propeller is currently being phased out. For additional variety, checkout our Mercury Spitfire Aluminum four-blade aluminum props.Unsure if this prop is right for you? Use our Propeller Finder to ensure you have the right propeller for your boat!//