Fuel injector assembly

Various embodiments include a fuel injector assembly for an internal combustion engine comprising: an injector cup; a securing device to fasten the injector cup to the engine; wherein a first end of the injector cup remote from the fuel inlet port comprises an outwardly extending flange; a connector abutting the flange, wherein the injector cup and the fuel injector are secured together through the connector; and a fastening bracket supported on the flange, wherein the injector cup and the connector are secured through the fastening bracket by a fastening device. The fastening device comprises a U-shaped clip with a first arm disposed between a clamping face of the fastening device and the fastening bracket and a second arm generally parallel to the first arm disposed on the opposite side of the fastening bracket.