Mercury - Bravo I Propeller 15.25" Diameter x 32" Pitch Left-Hand Rotation 4-Blade Stainless Steel Polished Finish 8M0151220. Overview. There's a moment on the water when everything lines up - the throttle's open, the hull lifts clean, and the wake behind you stretches perfectly smooth. That's the feeling the Mercury Bravo I Propeller (8M0151220) is built for. Whether you're chasing top-end speed, carving clean turns at high drive height, or running wide open in open water, this prop makes every