Mercury - Quicksilver Alternator Marine Charging System Corrosion-Resistant Finish 8M6007448. Overview. When you're running an older diesel or European marine engine, dependable charging isn't a luxury - it's peace of mind. This Quicksilver alternator is built for boaters who know their engine well and expect it to behave the same way every time they leave the dock. It's the kind of part you trust quietly, whether you're pushing through open water or idling into a tight harbor slip. Once it's in