Mercury - Tempest Plus 3-Blade Stainless Steel Propeller 14.6" Diameter x 19" Pitch Right-Hand Rotation 3-Blade Stainless Steel Polished Finish 8M0151381. Overview. There's a reason the Mercury Tempest Plus 14.6x19 Right-Hand 3-Blade Stainless Steel Propeller (8M0151381) shows up on so many serious fishing rigs-it's reliable, fast, and tuned to perform where it matters most. From the first push of the throttle, you can feel its smooth pull and solid grip on the water. It lifts your bow cleanly,