Mercury - Quicksilver Engine Starter Diesel Starting Series Durable Marine Construction 8M6007439. Overview. When you're running a diesel engine-whether it's pushing a sailboat through early morning fog or powering equipment on a long workday-the starter becomes one of those pieces you rely on more than you realize. You hit the button, and before you've even had time to think, the engine should come alive. That moment of trust matters. It sets the tone for the entire day. The Mercury Marine part