Mercury - SpitFire 4-Blade Aluminum Propeller 14" Diameter x 19" Pitch Right-Hand Rotation 4 Blades Aluminum Polished Finish 8M0084495. Overview. There's a moment every boater knows - when the throttle slides forward, the bow lifts, and everything feels right. The Mercury SpitFire 4-Blade Aluminum Propeller (Part Number 8M0084495) captures that feeling every single time. It is built for those who want crisp acceleration, confident control, and a prop that simply grips the water and goes. You'll