Mercury - Quicksilver Engine Starter Diesel Starting Series Durable Marine Construction 8M6007441. Overview. If you've spent any time around a diesel-powered boat or work engine, you know how much trust you put into a starter. It's the spark that begins every journey, the heartbeat that brings the engine to life. When it works, the whole day feels easier - steady, predictable, and under control. The Mercury Marine part number 8M6007441 Quicksilver Engine Starter gives you that kind of assurance.