Mercury - SpitFire Pontoon 4-Blade Aluminum Propeller 13.8" Diameter x 11" Pitch Right-Hand Rotation Four Blades Aluminum Satin Finish 8M8026560. Overview. Every pontoon owner knows the difference between a prop that just gets you there and one that makes every ride feel effortless. The Mercury SpitFire Pontoon 4-Blade Aluminum Propeller sits firmly in the second category. It is that perfect blend of grip, lift, and quiet confidence - the kind that lets you glide through open water or throttle u