This replacement mechanical lock is made by Bosch and is compatible with ranges.This mechanical lock is located on the upper corner of the range's back panel. It is a small safety device that could prevent the range from powering on or heating up if it is faulty. This part can be replaced with basic household tools. Ensure the appliance is unplugged and allowed to cool down before proceeding with the replacement process. This is an authentic OEM part made of high-quality, durable, non-corrosive metal and is only sold individually. This mechanical lock can be used with ranges and ovens manufactured Bosch, Thermador, Gaggenau, and other brands.