Mercury 48-8M8026555 Spitfire Aluminum 13.8" Diameter X 10 Pitch Propeller The Mercury Spitfire Aluminum offers next-generation aluminum performance designed to hit top speed fast. These high quality USA made props feature advanced engineering that are created and completed in Fond Du Lac, Wisconsin. The Spitfire Aluminum is made using unique Mercalloy aluminum, which allows for thinner blades that create less drag. Features: Performance aluminum propeller.; 16-25% faster acceleration.; Superior holding with no penalty in top speed.; Created and completed by Mercury engineers and employees in Fond du Lac, Wisconsin, USA.; Specifications: Diameter: 13.8; Pitch: 10; Rotation: Standard (Right Hand); Number of Blades: 4; Material: Mercalloy Aluminum; Hub: Flo-Torq II 835257K1 Hub Kit (Included); Fits 40-60 HP Bigfoot/CT 4-Stroke; 75-125 HP 2 and 4-Stroke; Unsure if this prop is right for you? Use our Propeller Finder to ensure you have the right propeller for your boat!//