Moeller offers a wide variety of OEM compatible replacement fuel lines that meet 95′ of the Outboard Applications in the market today. Moeller offers a wide variety of OEM compatible replacement fuel lines that meet 95′ of the Outboard Applications in the market today. Maximum flow for improved engine performance, Moeller primer bulbs feature gasoline and solvent-resistant construction, stainless steel clamps and dual internal check valves to ensure a more rapid prime while preventing fuel flow back.