Painless Performance - Fan Relay w/thermostat (on 185, off 175) - 30103

This Fan-Thom II kit comes with a threaded thermostat that screws into the engine block or intake manifold 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:

1. SPST 40 Amp relay
2. 30 Amp circuit breaker
3. Thermostatic switch 185°F On/175°F Off (thread size: ⅜"-18NPT)
4. ½"NPT to ⅜"NPT adapter
5. Relay base with harness (6' input, 4' output)
6. Crimp-on terminals
7. Mounting hardware