Mercury - Vengeance 3-Blade Stainless Steel Propeller 14.5" Diameter x 17" Pitch Left-Hand Rotation 3 Blades Stainless Steel Polished Finish 8M0151404. Overview. There's a certain rhythm to boating-the way the water moves beneath you, the sound of the engine settling into its stride, and the feel of a prop that's perfectly tuned to your boat. The Mercury Vengeance 3-Blade Stainless Steel Propeller (Part Number 8M0151404) brings that rhythm to life. It's strong, smooth, and built to respond with