17624-ZV5-902 Fuel Cap Gasket - Overview. The 17624-ZV5-902 Fuel Cap Gasket is a critical sealing component designed for Honda marine engine fuel systems. It serves the essential function of creating a secure, leak-proof seal on the fuel cap to prevent fuel leakage and vapor escape. This gasket supports the fuel tank system by maintaining proper sealing integrity, thereby ensuring reliable operation of the marine engine by protecting against contamination and fuel loss. Crafted to fit precisely