Mercury - Revolution 4 Propeller 14.6" Diameter x 21" Pitch Right-Hand Rotation 4-Blade Stainless Steel Polished Finish 8M0151325. Overview. There's something special about the feeling of control when your boat lifts smoothly onto plane, tracks straight through chop, and stays rock solid no matter what's behind you. That's exactly what the Mercury Revolution 4 Propeller ( 8M0151325) is built to deliver. Designed for deep-V and high-load boats, it gives you instant lift, steady handling, and a ri