Replacement motor with small pinion installed.  First, make sure the motor is defective!  This 9-12 VDC motor will fit all super feeders.  HOWEVER, the plastic tab holding  the existing motor on its backside may need to be broken or twisted back to pull the existing motor out of its position.  The new replacement motor may or may not need to be glued in place.  Also, soldering of two wires from the electronics board to the motor will be required.  You may also consider purchasing the super feeder base only without electronics board or sending the feeder to us for repair.  Troubleshooting page