The product is an Engine Coolant Temperature Switch manufactured by Wells. It is part number TU47 and is made in the United States. The switch is compatible with interchange part numbers AIRTEX/WVE 1T1058 and STANDARD TS51. This component is used in engine cooling systems to monitor the temperature of the coolant and signal to the vehicle's computer when adjustments are needed to regulate the engine temperature. Wells is a reputable brand known for producing high-quality automotive parts and accessories.