Abstract: An overmolded fuel seal for preventing the leakage of fuel and fuel vapours in external fuel tank applications in a vehicle fuel system. The fuel seal comprises a fuel-resistant carrier that is overmolded with fuel-resistant elastomer. The carrier comprises flexible sealing lips and in the preferred embodiment an anchoring means, for attachment of an elastomer portion comprising sealing lips. The elastomer portion can be mechanically and/or chemically attached to the carrier. The compressed elastomer provides primary liquid and vapour sealing and the flexible lips of the carrier provide a secondary seal.