Refrigerator defrost thermostat. The thermostat clips onto the evaporator. If the refrigerator does not defrost both the thermostat and heater can be tested to determine which part is at fault.
Refrigerator evaporator fan motor. The evaporator fan motor draws air over the evaporator (cooling) coils and circulates the cold air through the refrigerator and freezer compartments.
Refrigerator door gasket, black. If this gasket is worn out, cold air will leak out of the refrigerator, and the refrigerator will have to work harder to cool down. As a result, the refrigerator may run longer than normal, or frost may accumulate inside of the refrigerator.
Part will not come threaded. You will need to use self tapping screws to make threads.
Freezer door gasket, black
Adaptive defrost control board