Painless Waterproof Fan Relay w/Thermostat - GM Gen III,IV Engines

This Fan-Thom II kit comes with a threaded thermostatic switch that screws into the extra coolant temperature sensor port of the passenger engine head on Generation III and up GM engines for a professional looking installation. This is inexpensive protection for an electric fan and a vehicle's wire harness. Provides constant voltage, protects from voltage and amperage spikes and prevents the fan from back feeding voltage through the vehicle's wire harness. 

This kit includes:

• Weatherproof SPST 40 Amp relay
• Weatherproof 30 Amp circuit breaker
• 12x1.5M Thread Thermostatic switch 205°F On/190°F Off 
• Weatherproof relay base with harness
• Weatherproof heat-shrinkable crimp-on terminals
• Mounting hardware