Mercury - Quicksilver Q3 3-Blade Stainless Steel Propeller 14.5" Diameter x 17" Pitch Right-Hand Rotation 3-Blade Stainless Steel High Polished Finish 8M0103521. Overview. There's nothing quite like that feeling when your boat launches forward with smooth, confident power when the throttle responds instantly, the hull lifts, and the water stretches out ahead like an open invitation. The Quicksilver Q3 3-Blade Stainless Steel Propeller (8M0103521) was made for that moment. This isn't just another