Norcold Optical Display Board 637081 (fits the 2118 models) This is the front Optical Control/ Display board board for all 2118 model refrigerators, regardless of serial number. 

Norcold Defrost Board 628668 (fits the 2117 model) This is the defrost board for the Norcold 2117 and 2118 model refrigerators, regardless of serial number.

Norcold 637962 Condensation Kit (fits the 2118 models)

Norcold Door Bin 636747 (fits the 2118 model) This is the upper and lower door bin that fits the Norcold 2118 model refrigerator.

Norcold Thermistor Assembly 629409 Rod/ Air (fits the 2118 model) This is the current rod/ air thermistor for all 2118 models, regardless of serial number.