Mercury - Bravo I Propeller 15.25" Diameter x 24" Pitch Left-Hand Rotation 4-Blade Stainless Steel Polished Finish 8M0151212. Overview. There's nothing quite like the moment when your boat lifts, locks in, and takes off smooth, fast, and completely under control. That's the kind of confidence the Mercury Bravo I Propeller (8M0151212) delivers every time you hit the throttle. Built for serious boaters who crave both speed and stability, this prop gives you the feeling that your boat is an extensi