Mercury - Quicksilver Q4 Propeller 14.6" Diameter x 17" Pitch Right-Hand Rotation 4 Blades Stainless Steel Polished Finish 8M0103526. Overview. Every boater knows that feeling - the moment you hit the throttle and the boat leaps forward like it's been waiting for the cue. That's exactly what the Quicksilver Q4 Stainless Steel Propeller (Part Number 8M0103526) delivers. Designed for those who expect quick response, steady lift, and confident control, this prop offers the kind of smooth accelerati