Mercury - Trophy Sport 4-Blade Stainless Steel Propeller 10.625" Diameter x 14" Pitch Right-Hand Rotation 4-Blade Stainless Steel Polished Finish 878616A46. Overview. There's nothing like the feeling of a boat that jumps to life when you open up the throttle, the bow lifts, the water flattens, and the ride feels effortless. That's exactly what the Mercury Trophy Sport 4-Blade Stainless Steel Propeller ( 878616A46) delivers. Designed for flats and bay boats running 30 to 60 HP outboards, this pro