Abstract: A stator (1?) for electromagnetic retarders intended for vehicle gearbox and axle installations, includes at least one electromagnetic coils (2) assembly, two identical annular radial flanges (5?, 5?), and an asymmetrical pole shoe (6) on each radial transverse face of the two ends of each of the electromagnetic coils, and attached by a central axial screw (7), perforated attachment studs that are symmetrical relative to a median plane (M) between and parallel to the transverse faces, attached to the electromagnetic coil (2) support (5?, 5?) in order to attach the stator (1?) beside one or the other of the transverse faces to a stator support of the vehicle, using fasteners.