Dual Electric Radiator Fan Wiring Diagram

Suggested electric fan wiring diagrams suggested primary cooling fan single speed on off using 12 volt switching devices only for primary activation note.

Dual electric radiator fan wiring diagram.

Hayden flex a lite or perma cool brands can provide a 12 volt output when activated. Check out part 1 on how to wire the fans up this video gives you an idea on how to make them work. Use our dual fan wiring diagram and guide to make sure you properly wire your fans to your thermostat. The cooling fan wiring diagram below is what we ve found to be the simplest and most reliable method.

87 red wire connects to the positive wire on the electric fan. Learn how to wire dual electric radiator fans. Start your wiring project by taking both of the positive wires from the fans and run them to the yellow wires on each relay tab 87. If you purchase our relay kit all required connectors are included to splice wires together.

For this set up we also used two of the speedway universal electric radiator cooling fan part number 910158 which comes in a 10 12. Or a single relay could be used to control both fans. Pin 87 yellow wire pin 85 orange wire pin 86 grey wire pin 30 red wire. It uses a 40 amp electric relay and electric fan sensor.

Most stand alone adjustable thermostats i e. Https amzn to 377klrp those fans fit perfect on 68 72 gm a body cars bu. 30 other red wire needs constant 12 volt power from the battery. 86 gray white wire goes to the ignition switch.

Dual fan wiring diagram connector to spal fan 12 gauge wire 10 gauge wire relay detail. The red wire from our relay connects directly to the cooling fan and the black wire from the cooling fan connects to ground both wires will utilize our supplied fan harness.