Mercury - Quicksilver Q4 Propeller 14.6" Diameter x 23" Pitch Left-Hand Rotation 4-Blade Stainless Steel Polished Finish 8M0103533. Overview. You can feel it the moment the throttle meets the water - that confident surge, the clean lift, the unmistakable sense that everything beneath you is working in perfect sync. That is what the Quicksilver Q4 delivers. It's not just about hitting higher speeds; it's about feeling connected and in control every step of the way. This prop runs smooth, grips th