Gear motor in particular for motor vehicle wiper mechanism

A motor and gearbox unit in particular for a motor vehicle windshield wiper mechanism, said motor and gearbox unit comprising a support casing on which an electric motor coupled to a gearbox is mounted, a closure casing covering the support casing, and connection means electrically interconnecting the various electrical components of the motor and gearbox unit, said motor and gearbox unit being characterized in that the connection means comprise at least one conductor track which is overmolded inside the closure casing, and which is provided with at least one notch suitable for co-operating by interfitting with a connection plug of one of the electrical components of the motor and gearbox unit, the track portions longitudinally defining each notch being suitable for exerting contact pressure by elastic deformation onto respective faces of the associated connection plug.