Electric Fan Relay Kit Part No 30101$ 28.79 Description This kit includes: SPST 40 Amp relay 30 Amp circuit breaker Relay base with harness (6′ input, 4′ output) Crimp-on terminals Mounting hardware 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. An absolute necessity if adding a dash mounted manual on/off switch to your electric fan circuit. Related products Weatherproof Fan Relay Kit w/Thermostatic Switch 185F On/175F Off Part No 30129Select options LSX Dual Fan-Dual Activation Fan Relay Kit (205 degrees F On/190 degrees F Off) Part No 30118Select options Weatherproof Fan Relay Kit w/Thermostatic Switch 195F On/185F Off Part No 30128Add to cart PCM Controlled Fan Relay Kit (Ground Activated) Part No 30109Select options This product has multiple variants. The options may be chosen on the product page Fan Relay w/thermostatic switch 195 degrees On/185 degrees Off Part No 30102Add to cart