Mercury - Hood Unlock Decal V12 Series High-Adhesion Vinyl 8M0179266. Overview. When you run a Mercury V12 offshore, you get used to equipment that works exactly the way it should. No fuss, no questions - just reliability at every turn. That's why even the smallest piece of labeling on your engine matters more than people realize. The hood release decal is one of those quiet essentials that makes maintenance straightforward and keeps your cowl looking clean and factory-correct.. The Mercury 8M01