Mercury - Black Max 3-Blade Extra Cup Aluminum Propeller 14" Diameter x 10" Pitch Right-Hand Rotation 3-Blade Mercalloy Aluminum Phantom Black Finish 8M0151354. Overview. Every boater remembers the first time they found that prop that just feels right. The one that delivers smooth power, steady lift, and reliable performance every time you push off the dock. That's what you get with the Mercury Black Max 3-Blade Extra Cup Aluminum Propeller (8M0151354) a prop trusted by weekend anglers, pontoon