Mercury - SpitFire 4-Blade Aluminum Propeller 12.8" Diameter x 19" Pitch Right-Hand Rotation Four Blades Aluminum Satin Finish 8M8026600. Overview. There's nothing quite like the feeling when your boat jumps onto plane, steady and sure, with every ounce of power translating into clean, confident thrust. The Mercury SpitFire 4-Blade Aluminum Propeller captures that moment perfectly - and delivers it every time. It is a prop built for boaters who love precision, responsiveness, and the kind of eff