Mercury - Bravo Three Front Propeller 16" Diameter x 20" Pitch Left-Hand 4-Blade Stainless Steel Matte Finish 8M8022360. Overview. If your boat demands smooth thrust and confident handling, the Mercury Bravo Three Front 4-Blade Stainless Steel Propeller (part number 8M8022360) delivers. Designed for the Bravo Three sterndrive, it is built to move big boats with quiet precision. The four-blade design bites clean water, creating a steady pull that feels effortless. Every time you throttle up, it i