Mercury - Maintenance & Cowl Removal Decal V12 Verado & SeaPro Series Marine Adhesive Graphic 8M0178225. Overview. Every V12 owner knows the feeling - that quiet confidence when you walk down the dock, glance at your engine, and know it's ready for whatever the day brings. These big Mercury outboards are built to work hard, run long, and face rough water without complaint. But even the toughest engines rely on the little things to keep them looking sharp and functioning the way Mercury intended.