Part WR09X27353, Defrost Thermostat, is a genuine OEM part manufactured by G.E. The manufacturer describes it as “REFRIGERATOR DEFROST THERMOSTAT”. Defrost heater thermostat.
G.E. manufactures different brands that my include:
Americana, Haier, Hotpoint, JC Penney, Kenmore, and RCA.
These brands may share the same part number for repairs. Some parts are compatible with different types of appliances (washing machine might share the same screw as a dryer). As long as the part number matches, it will be compatible with your repair.