The range of accessories includes: FOOT BRACKETS, which serve to support the motor pump unit in the event that the selected electric motor does not have mounting feet. DAMPING RINGS, intended mainly for use with motor-pump units positioned vertically and with the pump submerged in the oil tank. DAMPING RODS, to be mounted under the electric motor feet or under the foot brackets. CLEAN-OUT COVERS, facilitate internal maintenance of oil tanks in hydraulic power units.