Mercury - Black Max 3-Blade Aluminum Propeller 13.25" Diameter x 16" Pitch Right-Hand Rotation 3-Blade Aluminum Phantom Black Finish 854360A45. Overview. There's a moment every boater knows-the instant your boat lifts cleanly onto plane and glides across the water, steady and sure. The Mercury Black Max 3-Blade Aluminum Propeller (Part Number 854360A45) is built for that feeling. It's smooth, predictable, and quietly powerful, giving you confidence every time you push the throttle.. This prop do