Mercury - Quicksilver Silverado 3-Blade Stainless Steel Propeller 14.5" Diameter x 15" Pitch Right-Hand Rotation 3-Blade Stainless Steel Polished Finish QS5050X. Overview.. There's a distinct satisfaction in running a boat that just feels tuned in - when the throttle responds instantly, the bow lifts cleanly, and every turn feels confident and controlled. That's exactly what you get from the Quicksilver Silverado 14.5" x 15" Pitch Propeller (QS5050X).. It's not a flashy prop; it's a workhorse. B