The invention relates to a dual clutch (1) for a motor vehicle, comprising a first clutch sub-assembly (2) on the motor side and a second clutch sub-assembly (4) on the transmission side, the first clutch sub-assembly (2) having a first pressure plate (5) that can be moved towards a first counter-pressure plate (7) in order to clamp a friction disk (6) and the second clutch sub-assembly (4) having a second pressure plate (12) that can be moved towards a second counter-pressure plate (13) in order to clamp a friction disk (6). The first counter-pressure plate (7) is non-rotatably connected to the second counter-pressure plate (13) and at least one of said counter-pressure plates (7, 13) forms a lug (19) running in the circumferential direction, which axially-projecting lug pre-defines a fastening region (21) with the other counter-pressure plate (13, 7). The invention also relates to a motor vehicle power train provided with a dual clutch of this type.