This Avantco 17819739 evaporator fan motor is a perfect replacement for the one that came with select UBB, UDD, GDS-33, and GDC-24F series units. It is a vital part of your unit's refrigeration system, working with the other components to help your unit dissipate heat and keep the cabinet set to the right temperature. A broken or malfunctioning motor can prevent your unit from maintaining specifications and cause strain on other components, so be sure to replace it promptly.