Mercury - Black Max 3-Blade Aluminum Propeller 9.75" Diameter x 9.5" Pitch Right-Hand Rotation 3-Blade Aluminum Phantom Black Finish 896892A40. Overview. There's a certain comfort in knowing your propeller just works - every time, without complaint. The Mercury Black Max 3-Blade Aluminum Propeller (Part Number 896892A40) is that kind of prop. It's dependable, smooth, and built for boaters who value simplicity and performance over flash. Whether you're idling out of the marina at sunrise or throt