This kit includes a waterproof relay, 3/8" (or1/2")NPT thermostatic switch (185* on / 175* off), and fuse block. For single fan setups.
This kit is set up to turn your electric fan on at 185 degrees and shut off at 175 degrees and will work with any 12 volt system.
It is a 3/8" pipe thread, this kit includes everything you'll need to hook up to your fan. For the two red wires,please connect the long red wire to the battery and the short red wire to the fan.
Note: If you plan to install a high-profile cooling fan, you can curl or solder a larger wire into it. The 14AWG line (15 amps) is not big enough for high ampere traction.