Mercury - Quicksilver Silverado Propeller 10.3" Diameter x 15" Pitch Right-Hand Rotation 3 Blades Stainless Steel High-Polished Finish QS5170X. Overview. There's a feeling every boater knows-that perfect moment when your boat responds instantly, lifts smoothly, and glides across the water like it's second nature. The Quicksilver Silverado 3-Blade Stainless Steel Propeller ( QS5170X) delivers that experience every single time. Built for small to mid-range outboards, it gives you confident control