Mercury - Revolution 4 Propeller 14.6" Diameter x 17" Pitch Left-Hand Rotation 4-Blade Stainless Steel Polished Finish 8M0151316. Overview. There's a special kind of satisfaction that comes when your boat lifts onto plane fast and stays rock steady through rough water. That's what you get with the Mercury Revolution 4 Propeller ( 8M0151316) a prop that feels planted, confident, and built for serious days on the water. It's the kind of performance upgrade that makes you fall in love with your boa