Mercury - Black Max 3-Blade Aluminum Propeller 16" Diameter x 16" Pitch Right-Hand Rotation 3 Blades Aluminum Glossy Black Finish 16440A45. Overview. Every boater knows that moment when the motor hums just right, the water parts cleanly, and everything feels perfectly balanced. That's what the Mercury Black Max 16 x 16 Aluminum Propeller (16440A45) delivers every single time. It's smooth, responsive, and made for those who love the feel of a steady ride. Whether you're easing through calm water