Mercury - 5/16" (8mm) Fuel Line Assembly 12 Feet Fuel System Low-Permeation Gray Hose with Primer Bulb 8M0061896. OverviewIf you have ever had a day nearly ruined by a starved engine, you know how important a simple fuel line really is. One soft spot in the hose, one tired primer bulb, and suddenly the motor coughs just as the wind picks up or the fish finally turn on. A solid fuel line assembly is the kind of thing you do not think about when it is right, and cannot ignore when it is wrong. Wit