Mercury - Quicksilver Engine Starter Direct Drive Series 12-Volt 8M6007320. Overview. Anyone who's run a big two-stroke offshore machine knows that feeling when you turn the key and wait for the engine to answer back. On the right day, it's instant - a strong, confident crank that tells you the water is yours. On the wrong day, it's silence and frustration. The Quicksilver 8M6007320 is built for the first scenario, every single time. Designed for select 150-235 horsepower Evinrude and Johnson ou