Mercury - Steering Bypass Decal V12 Series High-Adhesion Vinyl 8M0179365. Overview. There's a certain comfort that comes from knowing every label, latch, and component on your outboard is exactly where it should be - clear, clean, and reliable. When you're running a Mercury V12 offshore, you don't want surprises. You want clarity. You want confidence. And you want to know that when you (or the next tech down the line) glance at the cowl, the information you need is right there and easy to read..