The GeneralAire 7301 is the correct replacement motor mounting plate for the following humidifier models:
The GeneralAire 12852 Humidifier Motor Mounting Plate is a replacement motor mounting plate compatible for use with the GeneralAire Legacy Drum Model 65 humidifier. The 12852 motor mounting plate connects to the 727-40 motor assembly, and is a vital component for the release of clean humidification from your Legacy humidifier to your home. The GeneralAire 7301 is a genuine GeneralAire 65 replacement part.
GeneralAire 12852 Humidifier Motor Mounting Plate specifications: