Mercury - Fuel Line Assembly Fuel System Components Marine-Grade Construction 8M0110830. Overview. There's something incredibly reassuring about a fuel system you don't have to think twice about. When you push off from the dock and the engine responds with a smooth hum, you know the fuel is flowing exactly the way it should. That quiet confidence is what keeps days on the water stress-free, whether you're cruising a winding river or fishing along a quiet shoreline. The Quicksilver Fuel Line Asse