SPAL's relay wiring kits are a must-have when installing an electric fan. The kits are designed to safely integrate with OEM wiring and incorporate printed wires for easy installation. The sensor is 3/8" NPT and has a switch temperature of 195 degrees Fahrenheit. We suggest the 195 degree kit for cooler climates and daily-driven cars.
To integrate the 3/8" NPT Temperature sensor, a weld in bung must be installed in the side of an alloy radiator or alloy thermostat housing.