Mercury - Quicksilver 832969T25 25-Amp Fuse Mercury Outboards 832969T25. Overview. A blown fuse can shut you down fast, but swapping it out should be simple. The Quicksilver 832969T25 25-Amp Fuse is the same marine-grade fuse Mercury installs at the factory. It's built to handle the heat, vibration, and moisture that come with long days on the water.. This small part protects your outboard's wiring and electronics from short circuits and overloads - the kind of thing that can ruin a trip if left