Mercury - Quicksilver Q3 Propeller 13.6" Diameter x 21" Pitch Right-Hand Rotation 3 Blades Stainless Steel High-Polished Finish 8M0103525. Overview. There's a moment every boater knows - when the engine hums, the throttle moves forward, and the boat seems to lift out of the water, alive and ready. That's the kind of performance you feel with the Quicksilver Q3 Stainless Steel Propeller (Part Number 8M0103525). Designed for people who want more than just a smooth ride, this prop takes control ser