Mercury - Quicksilver Silverado Propeller 13" Diameter x 18" Pitch Right-Hand Rotation 3 Blades Stainless Steel High-Polished Finish QS5118X. Overview. There's a feeling you get when your boat responds just right smooth acceleration, clean turns, and that steady hum that tells you everything is working in sync. The Quicksilver Silverado 3-Blade Stainless Steel Propeller ( QS5118X) delivers exactly that kind of confidence. Built for boaters who appreciate performance they can count on, it blends