Mercury - Verado12 Aft/Rear 3-Blade Stainless Steel Propeller 24.5" Pitch Right-Hand Rotation 3-Blade Stainless Steel Polished Finish 8M0166982. When you've spent enough time on the water, you can feel the difference between a prop that just spins and one that truly connects you to your boat. The Mercury Verado12 Aft/Rear 3-Blade Stainless Steel Propeller falls squarely in that second category. It's designed for Mercury's mighty V12 outboards - the kind of engines that turn heads and lift hulls