Mercury - SpitFire 4-Blade Aluminum Propeller 9.3" Diameter x 11" Pitch Right-Hand Rotation Four Blades Aluminum Satin Finish 8M8026655. Overview. There's a moment every boater looks forward to - that instant when the prop bites, the boat lifts cleanly, and you feel that steady pull of pure, confident power. The Mercury SpitFire 4-Blade Aluminum Propeller captures that feeling every single time. Built for small outboards but engineered with Mercury's performance DNA, it delivers quicker accelera