There were only 4 screws I had to remove, once I had the back freezer panel off. Just unscrewed the old ones and pulled the thermostat off. It's super nice it comes with both defrost heaters AND a thermostat. The hardest part is fitting your arms inside the narrow freezer door opening to remove and replace parts/screws. Be sure to save the screws from your old components. This does not come with screws It covers 3 possible repair issues. Great shipping. Amazing site. So happy with everything.