Replace worn or damaged connectors and restore the easy leak proof connection you once had. Fuel tank connectors can be damaged during transport, from being stepped on, or even repeated use can compromise the secure connection to fuel lines. Often this damage can cause the connection to leak resulting in a dangerous situation. Restore the connection and remove the dangers of leaky connection using West Marine fuel tank connectors. This Yamaha connector features male 1/4" NPT (national pipe thread) compatible with most portable fuel tanks. We recommend the use of gasoline compatible thread tape during installation for the best possible seal.