Brand: Derale Cooling Products Manufacturer's Part Number: 16731 Part Type: Fan Switches Product Line: Derale Single-Stage Fan Controllers Summit Racing Part Number: DER-16731 UPC: 083277167317 Thermal Switch Style: Sending unit only Sending Unit Style: Thread-in Sending Unit Included: Yes Sending Unit Thread Size: 1/8 in. NPT Fan Quantity: Single/Dual Fan On Temperature (degrees F): 190 degrees F Fan Off Temperature (degrees F): 175 degrees F Relay Included: No Wiring Harness Included: No Manual Override Switch Included: No Air Conditioning Relay Included: No Quantity: Sold as a kit. Notes: Includes 3/8 in. NPT adapter. Derale Single-Stage Fan Controllers Derale single-stage fan controllers can be installed in the radiator or a threaded location. They activate fans at a specific temperature and turn them off at a preset temperature. The controllers are available for single or dual fans， and specific types will work on vehicles equipped with air conditioning. For top-quality underhood cooling accessories， trust the expertise of Derale Performance.