Mercury - Revolution 4 4-Blade Stainless Steel Propeller 14.6" Diameter x 18" Pitch Left-Hand Rotation 4 Blades Stainless Steel Polished Finish 8M0151318. Overview. When you spend your weekends chasing new water or towing the kids until sunset, you need a prop that keeps up. The Mercury Revolution 4 4-Blade Stainless Steel Propeller (Part Number 8M0151318) brings the kind of punch, grip, and smooth control that makes every outing more fun - and more confident. It's designed for heavy, deep-V boa