Mercury - Quicksilver Engine Starter Yamaha / Hitachi Series 12-Volt 8M6007425. Overview. There's a certain kind of silence on the water right before you hit the key-just you, the boat, and whatever the day has in store. In that moment, you want absolute certainty that your engine will come alive without hesitation. That's why a dependable starter matters more than most people realize. The Mercury Marine part number 8M6007425 engine starter gives you that steady trust you feel in your chest. Whe