Electric Fan Wiring
The supplied diagram is both the most reliable and easiest method i ve found.
Electric fan wiring. 30 other red wire needs constant 12 volt power from the battery. 87 red wire connects to the positive wire on the electric fan. Or a single relay could be used to control both fans. Wiring electric fans this is really the main focus of the page here.
The mounting is left as an exercise for the reader remember that from school. Now take the power wire from your fan and connect it to the wire that is going through the firewall. Dual electric cooling fan wiring install kit 185 degree on 165 off engine fan thermostat temperature switch 40 50 amp relay kit 4 7 out of 5 stars 4 28 85 28. This will be the wire that connects your switch to your fan power wire.
So now we have a wire that goes through the engine bay to the cabin of your car. It uses our 40 amp electric relay kit part number 91064044 and electric fan sensor part number 91064013. You will not need many tools but a good wire crimper and the usual tools in your mechanics tool box. A relay kit our part number ccfkrl will include everything you need to properly wire up your electric cooling fans with the exception of additional wiring needed to complete all of the circuits.
Get the 10 gauge wire and place it through the hole in your fire wall. The fan wiring diagrams will start from simplest to more complex so you can ease into them. The first part of the installation is to install the electric fan to your radiator and remove the mechanical fan.