Mercury - Fuel Pump MerCruiser GM V8 Series Marine-Grade Steel Construction 8M0058164. Overview. There's a specific kind of confidence that comes from turning the key on a well-cared-for MerCruiser and feeling that deep V8 come alive without hesitation. It's steady. It's familiar. And it's exactly the feeling you get when your fuel system is supported by a part you trust. The Quicksilver 8M0058164 Fuel Pump keeps that heartbeat strong, delivering reliable fuel flow so you can focus on the water