Easy to follow wiring diagram simplify wiring your dual electric fans.Direct replacement part fit for 10, 12, 14 and 16 inch cooling fans Dual Electric Fan Relay Kit including: 40A relay, thermostat switch, wiring harness, 3/8 inch to 1/2 inch adapter, inline fuse holder, 2 20amp fuse, 1 spade connector for the temp sensor, 8 ring terminals, and 4 wire connectors Note:Please crimp or solder bigger wires to it If you intend to mount high-profile fans,the 14AWG wires (15 amps) are not bigger enough for high amps draw Electric Radiator Fan Mounting Kit Compatible for Electric Cooling Fan and Transmission Cooler. Equipped with protective springs: The set contains 4 protective springs, which can prevent the bottom of the installation from breaking Electric Fan Relay Kit Fit for 10", 12",14" and 16" fans.For dual fan wiring, you would need two of this relay kit NOTICE OF RADIATOR FAN MOUNTING KIT :