Brand: Painless Performance Manufacturer's Part Number: 30117 Part Type: Fan Switches Product Line: Painless Performance Dual Activation Electric Fan Relay Kits Summit Racing Part Number: PRF-30117 UPC: 749823301177 Thermal Switch Style: Fan control kit Sending Unit Style: Thread-in Sending Unit Included: Yes Sending Unit Thread Size: 3/8 in. NPT Fan Quantity: Dual Fan On Temperature (degrees F): 185 degrees F Fan Off Temperature (degrees F): 175 degrees F Relay Included: Yes Wiring Harness Included: Yes Manual Override Switch Included: No Air Conditioning Relay Included: Yes Quantity: Sold as a kit. Notes: Includes 1/2 in. NPT to 3/8 in. NPT adapter. Painless Performance Dual Activation Electric Fan Relay Kits Painless Performance dual activation electric fan relay kits operate off of a thermostatic switch and are needed when adding A/C to your Hot Rod. These relay kits are exactly what you need. Only a few minutes are needed for the installation. Your cooling fan will come on when the engine reaches the preset temperature of the thermostatic switch mounted in the engine head or when the A/C is turned on. Kits include:* 40 amp relay with mounting base* 30 amp circuit breaker protection for the electric fan* Preterminated and printed wire harness* Thermostatic switch* 1/2 in. NPT to 3/8 in. NPT adapter* Mounting hardware and insulated terminals* Illustrated instruction sheet