A housing for a crankshaft for a drive train of a motor vehicle, having a main housing body that has an opening that extends in axial direction, and at least one cylinder chamber that extends in radial direction through the main housing body to the opening, the opening being open at a first axial end of the main housing body; and a housing flange that is arranged at the first axial end of the main housing body, a piston being positioned in this housing flange such that it can be moved axially so as to form a pressure chamber between the housing flange and the piston, it being possible to apply pressure to this pressure chamber by means of a pressure medium and the pressure chamber serving to move the piston axially, the pressure chamber being connected to a supply opening via which the pressure medium can be supplied, the supply opening being in fluid connection with a fitting that is arranged in the housing flange and in the main housing body and being connectable to an external pressure medium line, the fitting having a clearance hole, part of which takes the form of an internal driver profile, and having a first portion and a second portion, a first seal being arranged between the first portion of the fitting and the main housing body, the second portion having an external thread and a second seal being arranged between the second portion and the housing flange, characterised in that, the fitting is formed in one piece and is configured without a head; at least part of the first portion is inserted into an opening of the main housing body; and the external thread of the second portion is screwed to a corresponding internal thread of the housing flange; or the fitting having at least one hollow screw and one plug connection element, this hollow screw having a head and a clearance hole, and the plug connection element taking the form of a sleeve, one axial end of the plug connection element being inserted in the housing flange, the other axial end of the plug connection element being inserted in the clearance hole of the hollow screw and the hollow screw being screwed to the main housing body, a seal being arranged between the head of the hollow screw and the main housing body; characterised in that, the entire outer circumferential surface of the sleeve is surrounded by a sealing material; this sealing material has a circumferential, outward-extending bead at either axial end of the sleeve; and the head of the hollow screw projects from an outer housing face of the main housing body by a head projection length of 2 to 5mm. a main housing body that has an opening that extends in axial direction, and at least one cylinder chamber that extends in radial direction through the main housing body to the opening, the opening being open at a first axial end of the main housing body; and a housing flange that is arranged at the first axial end of the main housing body, a piston being positioned in this housing flange such that it can be moved axially so as to form a pressure chamber between the housing flange and the piston, it being possible to apply pressure to this pressure chamber by means of a pressure medium and the pressure chamber serving to move the piston axially, the pressure chamber being connected to a supply opening via which the pressure medium can be supplied, the supply opening being in fluid connection with a fitting that is arranged in the housing flange and in the main housing body and being connectable to an external pressure medium line, the fitting having a clearance hole, part of which takes the form of an internal driver profile, and having a first portion and a second portion, a first seal being arranged between the first portion of the fitting and the main housing body, the second portion having an external thread and a second seal being arranged between the second portion and the housing flange, characterised in that, the fitting is formed in one piece and is configured without a head; at least part of the first portion is inserted into an opening of the main housing body; and the external thread of the second portion is screwed to a corresponding internal thread of the housing flange; or the fitting having at least one hollow screw and one plug connection element, this hollow screw having a head and a clearance hole, and the plug connection element taking the form of a sleeve, one axial end of the plug connection element being inserted in the housing flange, the other axial end of the plug connection element being inserted in the clearance hole of the hollow screw and the hollow screw being screwed to the main housing body, a seal being arranged between the head of the hollow screw and the main housing body; characterised in that, the entire outer circumferential surface of the sleeve is surrounded by a sealing material; this sealing material has a circumferential, outward-extending bead at either axial end of the sleeve; and the head of the hollow screw projects from an outer housing face of the main housing body by a head projection length of 2 to 5mm.