1. Efficient Cooling: This fan relay kit is suitable for vehicle cooling system, compatible with 10 inch, 12 inch, 14 inch, and 16 inch fans, ensuring efficient cooling, preventing engine overheating, providing reliable performance.
2. Temperature Control: The kit features a thermostat switch, ensuring the fan starts at 185℉ and shuts off at 175℉. The relay helps maintain the engine temperature within the best range to prevent overheating. The switch ensures the fan runs only when needed, extending engine life, improving overall cooling effectiveness.
3. Easy Installation: The included wiring diagram makes installation simple, the electric fan wiring kit provides all the components you need, can be used for both dual fan or a single fan setting.
4. Long Lasting: This electric fan controller kit adopts water proof holder and reliable components, can withstand extreme conditions. The relay can operate in various weather conditions, ensuring that the fan works properly when needed.
5. Wide Compatibility: This dual electric fan relay kit is compatible with various vehicles, including trucks, cars, boats, and more, suitable for cooling kit with thermostat or as a fan installation kit. The automatic fan controller provides precise temperature control.

Specification:
Item Type: Dual Electric Fan Relay Kit
Material: PVC
Current: 40A
Thermostat Switch: 185℉ on, 175℉ off
Thread Size: The thermostat switch has a 3/8 inch (approximately 1.9 cm) pipe thread and includes a 1/2 inch (approximately 1.3 cm) adapter
Usage:
Connect the color coded wires according to the chart and the annotations below:
Red: +12VDC
COFFEE: Fan positive and negative poles and relay
Black: Ignition
Gray: Sending unit and relay
Note:
The thermostat included with this kit is OE style and can be installed on the cylinder head of the engine or any water jacket.
Do not use tape on the sensor as it may cause poor electrical contact or incorrect temperature readings.

packing list:
1 x Wiring Diagram
2 x 40A Relays with Wire Harness
1 x 3/8 Inch Thermostat Switch (185°F On - 175°F Off)
1 x 3/8 Inch to 1/2 Inch Adapter
2 x Inline Holders
2 x 20 Amp
8 x Terminals
4 x Wire Connectors

Note:
If you are planning to install a high performance cooling fan, you can crimp or solder larger wires. 1.5mm² wire (15 Amps) is not large enough to withstand high amperage extraction
12 AWG - 20 Amps
10 AWG - 30 Amps
8 AWG - 40 Amps