Mercury - Quicksilver Fuel Line Assembly, 12 Ft with Primer Bulb & Connections Fuel System Components Low-Permeation Marine Hose 8M0061089. Overview. There's a special peace that comes from knowing your fuel system is solid. No soft spots in the hose, no guessing whether the primer bulb will pick up fuel, no worries about vapor lock on a warm afternoon. When everything flows the way it should, the whole day feels smoother - from the moment you fire up the engine to the quiet ride back toward the