Abstract: A vehicle door with a door casing includes an inside door panel (1) of a shell-like design. The inside door panel (1) is closed by a replaceable outside door shell (2) toward the outside of the vehicle door. To achieve that moisture is prevented in a simple manner from entering the interior space of the vehicle from the door casing, the inside door panel (1) is connected from its side facing the outer shell (2) to a plastic support part. The plastic part is provided with fastening elements (13), which carry the door components to be arranged in the door casing. The structural elements (9, 10, 10′) of the vehicle door, which protrude into the interior space of the vehicle, are fastened to the inside door panel (1). The openings (5, 6) necessary in the inside door panel (1) for the structural elements (9, 10, 10′) protruding into the interior space of the vehicle are sealed, e.g., by the plastic support part (8).