Mercury - Quicksilver Engine Starter Gear Reduction Series 12-Volt 8M6007404. Overview. There's a certain peace that comes from equipment that simply works-day in, day out, without fuss. Whether you're moving freight, running industrial machinery, or keeping a workboat reliable through long shifts, a dependable starter becomes more than a part; it's part of your routine. The Quicksilver 8M6007404 starter is built for that kind of trust. It brings steady, confident cranking power to a range of Cl