Mercury - Verado12 Aft/Rear Propeller 37" Pitch Right-Hand 3-Blade Stainless Steel 8M0166996. Overview. When power meets precision, you can feel it - that steady surge as the hull lifts, the water smooths, and everything feels in sync. The Mercury Verado12 Aft/Rear 3-Blade Stainless Steel Propeller (part number 8M0166996) captures that balance perfectly. Designed for Mercury's V12 600-horsepower Verado and 500-horsepower SeaPro outboards, this rear prop translates horsepower into confident thrus