Abstract: A coupling device is provided for hydraulically and mechanically coupling a fuel injector to a fuel rail of a combustion engine, the coupling device including a fuel injector cup configured to be coupled to the fuel rail and to engage a fuel inlet portion of the fuel injector, the fuel injector cup including a first part including a recess and a second part configured to be received in the recess of the first part and configured to engage the fuel inlet portion of the fuel injector.

Abstract: The coupling device (40) comprises a holding fixture (30) being designed to be mechanically coupled to the fuel rail and comprising a through hole (42) extending between a first surface (44) and a second surface (46), the second surface (46) opposing the first surface (44) and being arranged and designed to face the cylinder head. Furthermore the coupling device (40) comprises a fastening element (48) being designed to be fixedly coupled to the cylinder head. The fastening element (48) comprises a head portion (50) and a shank portion (52). The head portion (50) faces the first surface (44) of the holding fixture (30) and the shank portion (52) is being partially arranged in the through hole (42) and is designed to be in engagement with the cylinder head.