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Fuel Primer Bulb Ø9.5 mm (Hand Squeeze Pump with One-Way Valve)
This Ø9.5 mm fuel primer bulb hand pump is a dependable solution for quickly priming the fuel system of your boat engine or other equipment. Made from high-quality fuel-resistant rubber, it withstands prolonged exposure to gasoline, diesel, and fuel blends without cracking or degrading. The integrated one-way check valve ensures that each squeeze pushes fuel forward through the line toward your engine, without allowing any backflow into the tank. This efficient priming action makes starting your engine easier, particularly after long storage or maintenance when fuel might have drained back. The bulb’s compact, lightweight design attaches inline on the fuel hose and is very easy to operate by hand – simply squeeze it a few times until the fuel fills the line. It’s an essential tool for reliable engine startups and smooth fuel delivery.
Use Cases and Recommendations:
- Outboard-Powered Boats: Ideal for priming outboard motor fuel lines (generally on boats ~10–25 feet with engines up to ~150 HP). Before cold starts, a few squeezes deliver fuel to the carburetor/injection system, reducing strain on the starter and ensuring the engine fires up quickly.
- Portable Tanks & Generators: Excellent for transferring gasoline or diesel from a jerry can to a built-in tank on generators, lawn tractors, ATVs, etc., without spillage or the need for electrical pumps. It makes refueling safe and convenient in remote locations.
- Emergency Fuel Transfer: Serves as a handy emergency pump to transfer fuel between containers or to siphon fuel out of a tank. Its small size fits in onboard emergency kits, giving you a manual backup if an electric fuel pump fails or if you need to assist another vessel with fuel.
- Engine Maintenance: Recommended for any marine engine setup – keeping a primer bulb in the fuel line maintains consistent fuel supply. It can help bleed air from the fuel system after replacing filters or performing engine work, ensuring smooth restarts and preventing air locks in fuel lines.
