Customer Questions and Answers for Refrigerator Compressor Overload by Whirlpool

Hello Barbara! The white part is the refrigerator overload and the black part is the refrigerator relay. The relay kickstarts the compressor. The overload protects the compressor from overheating and also stops compressor from starting in high amperage conditions. We do not have the part numbers of each part used in this kit. I hope this information helps you, thanks!