Mercury - 250 Horsepower Rear Decal V8 SeaPro Series Marine Adhesive Finish 8M0217486. Overview. When you run a SeaPro engine, you rely on it day after day-through long runs, early mornings, and weather that doesn't always cooperate. There's a steady confidence that comes from knowing your gear can handle the work. A fresh rear decal brings that feeling back to the cowling. It restores the sharp, clean look that SeaPro engines are known for, the kind that makes you glance back at the transom and