Mercury - Revolution 4 4-Blade Stainless Steel Propeller 14.6" Diameter x 18" Pitch Right-Hand Rotation 4 Blades Stainless Steel Polished Finish 8M0151319. Overview. There's a certain kind of confidence that comes from knowing your prop won't quit when the water gets rough. The Mercury Revolution 4 4-Blade Stainless Steel Propeller (Part Number 8M0151319) is made for that kind of boating - the kind where power meets precision and performance never wavers. Whether you're hauling the family on a w