Mercury Spitfire 4-Blade Aluminum Pontoon Propeller Prop 13.8 x 11P 488M8026560 Part Manufacturer: Mercury Marine; Series: Spitfire; Part Number: 48-8M8026560; UPC: 745061893962 Size: 13.8 x 11 pitch; Rotation: Right Hand; Material: Aluminum; Blades: 4 Measures approximately 4 3/8" OD across the back of the hub; includes (1) 835257K1 Flo-Torq II hub kit Sold as seen in pictures; Note every computer shows colors differently; All measurements are approximate; Hardware and instruction/installation manual not included