This 1/4″ threaded fuel tank connector is designed to ensure reliable connections for your boat’s fuel supply and vent lines. It is compatible with many fuel or water tanks and comes in two configurations – one for a tank vent (breather) line and one for the fuel outlet line. Made from high-quality hydrocarbon-resistant plastic, this connector withstands prolonged use in marine environments.
The Ø12 mm breather connector variant allows safe venting of fuel vapors and intake of air into the tank, preventing vacuum formation as fuel is drawn. The Ø10 mm outlet connector provides a steady fuel feed from the tank to your engine. Both connectors feature a universal 1/4″ thread that makes installation easy on most standard tanks.
- Recommended Use: Ideal as a replacement or additional fitting when installing fuel tanks on boats, RIBs, and other vessels, to connect fuel hoses and vent hoses securely.
- Compatibility: Fits plastic or metal fuel tanks equipped with standard 1/4″ threaded ports for connectors (a common size on marine tanks).
- Installation Tip: Apply thread seal tape or fuel-resistant sealant on the threads during installation to ensure a leak-proof fit and prevent any seepage.
- Variants: Choose the 12 mm vent connector (03141-5) to attach your tank’s vent hose, or the 10 mm outlet connector (03141-6) to attach the fuel line feeding your engine.


