Mercury - Quicksilver Fuse Assembly 110 Amp Marine Fuse 79023T10. Overview. Every boat owner knows it's the small parts that keep the big systems alive. The Mercury Marine 79023T10 Quicksilver Fuse Assembly is one of those parts - a sturdy 110-amp fuse designed to protect your boat's electrical system when things get overloaded. It's made for heavy-use circuits like power trim, steering, battery, or key switches. Built with the same attention to detail as Mercury's engines, this fuse reacts fast