We show you how to wire in an electric fan relay kit with a thermostatic switch. If you've got an electric cooling fan on your classic car or hot rod and you want to know how to wire it with a ...

and turn on a power-hungry device like an electric fan. Most relays are of the four-prong, single-pole-single-throw (SPST) variety, and have the following four DIN-standard terminal numbers ...

A relay is used to activate a high-amp accessory with a low-amp switch. An accessory like an electric fan or electric fuel pump requires significant amperage. Sending that amperage through a ...

The problem was there wasn't room between the water pump and the radiator for a centrally-mounted, single 16-inch electric fan. Eric did ... He found a four-relay box on eBay that would ...

Q: Our daughter borrowed our 2000 Jeep Grand Cherokee Laredo and when she returned home in the mountains, she noted that the electric ... commands the relay to turn on the fan, then turns it ...

When installing an electric fan, it's important to use an electrical relay so you don't tax your charging system too much. Most factory fans pull a lot of amps from the charging system ...