Mercury - Quicksilver Q4 Propeller 14.6" Diameter x 21" Pitch Left-Hand Rotation 4-Blade Stainless Steel Polished Finish 8M0103531. OverviewIf you've ever launched from the dock and felt that perfect surge - that steady, confident lift that tells you your setup is dialed in - that's the Quicksilver Q4. It's a prop that feels alive under your boat, pushing you forward with purpose. You'll notice the grip right away, the way it bites the water instead of slipping through it. Whether you're chasing