Mercury - Bravo Four S Front 4-Blade Stainless Steel Propeller 22.5" Pitch Left-Hand Rotation 4 Blades Stainless Steel Polished Finish 8M0167005. Overview. If you have spent time behind the wheel of a surf or tow boat, you know that feeling - the deep, confident pull that gets you up on plane fast and holds steady no matter what's behind you. The Mercury Bravo Four S Front 4-Blade Propeller (Part Number 8M0167005) is built for that kind of performance. Designed for MerCruiser's forward-facing Br