Mercury - Quicksilver Engine Starter Volvo Penta Series Marine-Grade Build 8M6007408. Overview. Anyone who's spent a morning on the water knows that a good starter motor doesn't just turn an engine-it sets the tone for the entire day. The Quicksilver 8M6007408 Engine Starter delivers that steady, confident crank that lets you breathe easy before you even shift into gear. It's the kind of component you barely think about when it works flawlessly, but you deeply appreciate when conditions get mess