Mercury - Bravo Four S Front Propeller 25.5" Pitch Left-Hand 4-Blade Stainless Steel Polished 8M0167009. Overview. The moment you push the throttle, you will feel this prop bite. The Mercury Bravo Four S Front 4-Blade Stainless Steel Propeller (8M0167009) was built for those long mornings when the lake's still calm and the water's like glass. It is steady, strong, and smooth - the kind of prop you trust when you have got a full crew, boards stacked on the rack, and everyone's ready to ride. You