Mercury - Quicksilver Q3 Propeller 15.3" Diameter x 14" Pitch Right-Hand Rotation 3-Blade Stainless Steel High-Polished Finish 8M0103518. Overview. There is a moment every boater knows - when you hit the throttle, and the boat doesn't just move, it responds. It lifts, it grips, and it feels like it's reading your intentions before you even make them. That's the Quicksilver Q3 experience. This prop has the kind of effortless precision that makes every launch feel sharp and controlled, every turn