Mercury - Revolution 4 4-Blade Stainless Steel Propeller 14.6" Diameter x 19" Pitch Left-Hand Rotation 4-Blade Stainless Steel Polished Finish 8M0151320. Overview. Some props just move water - the Mercury Revolution 4 4-Blade Stainless Steel Propeller (Part Number 8M0151320) moves you. It's the kind of prop that feels balanced and dependable, whether you're charging across open water or pulling a skier out of the hole. You'll feel its grip bite into the water as your boat rises smoothly onto pla