Mercury - 90-Amp Fuse Electrical Protection Marine-Grade 8M0207795. Overview. Out on the water, little things matter more than most people realize. A small component can be the difference between a smooth ride back to the marina or a long drift waiting for help. That's why boaters who've spent enough time watching the horizon trust parts that simply work-no drama, no surprises. The Mercury 90-Amp Fuse 8M0207795 is one of those quiet, dependable guardians in your electrical system, giving you the