SPAL relay wiring kits are a must have when installing an electric fan. Designed to safely integrate with OEM wiring. 

185º & 195º Thermostat Fan Harness Kits feature:

• Waterproof 40/50 amp relay
• Printed wires for easy installation
• Optional switched override capability
• 3/8" NPT SS sensor
• 1/2" NPT adapter