Product review (5 stars): Installed thermostat within the hour of arrival
The 20 year old Kenmore fridge was either warm or froze everything. Figured out it was the fault of the thermostat. I also ordered the defrost timer at the same time because it was not expensive $6 (shipping for one item or two still the same $10.3) and don't know when the timer will fail too.  Fridge was working fine ever since Feb 23 2013