Radiator and Condenser Fans

There are many different electric fans available to perform many duties. The fans we sell are used to supplement the air flow through the condenser. We have a small assortment of 16" fans used for Radiator cooling. All fans are reversible unless noted.

Every vehicle with air conditioning needs a fan on the radiator to pull the air through the condenser and radiator.  Fan blades, electric fans, and shrouds are the most critical part of an a/c system.  If the fan is not moving enough air the a/c will not be able to operate effectively.  Every vehicle should have an electric fan, or a mechanical fan if a/c is installed.

The best setup for any vehicle is to use a fan clutch with a steel blade fan, and a fan shroud.  A fan shroud can be used incorrectly.  The fan blades on the engine should sit half in the shroud and half out of the shroud.  If your fan is all the way in the shroud or on the outside of the shroud it will not pull air through, and get rid of the air from the radiator area.  If you have a fan shroud, and a fan blade that is made of a flimsy aluminum you may experience problems with the a/c not performing also.  Our best guess is that the fan blades flatten out while the vehicles are driving at higher RPMs.  If the blade flattens out it will cause the air to be stopped by the fan leaving hot air in the area of the condenser and radiator. 

An easy fix to help an insufficient fan and shroud setup is an auxiliary electric fan.  The electric fan can be mounted on the front of the condenser to help move.  If you add to many electric fans it may have the same effect as the flimsy aluminum fan blade.  The goal of a fan is to move air, not restrict it.  If you wish to use an electric fan for the cooling fan be sure to purchase a good quality electric fan such as Maradyne.  Good quality fans are normally tested under all conditions, have better components to avoid failure, and move more air (higher CFM).

If your vehicle does not have room for a fan blade, fan clutch, and fan shroud you should build a "wall" around the area between the condenser and the radiator to form a tunnel.  This will force air through both parts without losing air in the middle or pulling air from in between the condenser and radiator.  The most important thing to remember is that air will always flow the path of least resistance.  Be sure make the air flow through the radiator and condenser and not around it.

If you are using an electric fan a relay, and a thermostat should be used.  We also offer trinary switches for auxiliary fans.  The relay will protect your vehicles electrical system from being overwhelmed, and the thermostat will turn the fan on and off so you do not have worry about remembering.   We offer directions on the website for relay wiring, and all the thermostats we sell come with directions.

  1. 3960 Flex Fan Spacer Kit  

    3960 Flex Fan Spacer Kit

    Part #3960
    Hayden Automotive fan spacer kits will keep your fan in place and correctly positioned in the fan shroud. Hayden manufactures these fan spacers out of quality materials to ensue performance and durability. Learn More

  2. 30 Amp Relay  

    30 Amp Relay

    Part #77-2002
    Standard 30 Amp relay that is used for many different things on autos. Our most common use is for running an electric fan when the A/C system is turned on. This is a standard five spade connector relay that is 12 volt dc 30 amps, with a resistor for voltage spike protection. Use a relay mount for easy and clean mounting. Learn More

  3. Adjustable Fan Thermostat 180 - 240 Degrees  

    Adjustable Fan Thermostat 180 - 240 Degrees

    Part #77-2003
    Adjustable thermostat to turn the electric fan on at 180 degrees - 240 degree. The thermostat has two screw holes for mounting and a slotted rotary adjustment.
    Probe has to go into radiator hose. Hose clamp will not damage probe wire, nor will it leak. Learn More

  4. Maradyne Fan Thermostat 185 Degrees  

    Maradyne Fan Thermostat 185 Degrees

    Part #77-2004

    For carbureted engines, 3/8 in. NPT. Turns on at 185° – turns off at 170°. This thermostat screws into an intake manifold to control an electric fan.

    Learn More

  5. Maradyne Fan Thermostat 195 Degrees  

    Maradyne Fan Thermostat 195 Degrees

    Part #77-2005
    For fuel injected engines, 3/8 in. NPT. Turns on at 200° – turns off at 195°. Learn More

  6. Adjustable Fan Thermostat Relay and Harness  

    Adjustable Fan Thermostat Relay and Harness

    Part #77-2006
    Adjustable Fan thermostat with relay and wire harness by Maradyne. This kit is all you need to run your electric fan off of an adjustable thermostat. The fan is designed to run off of a relay to save your alternator as well as your wiring. The harness is made to plug into any vehicle with ease. The wires are marked for easy hookup, and the kit includes directions.
    The thermostat is adjustable from 180 to 240 degrees. The probe on the thermostat can be inserted into the radiator hose or it can be pushed directly into the fins of the radiator. Learn More

  7. Engine Temperature Switch Relay And Harness  

    Engine Temperature Switch Relay And Harness

    Part #77-2007
    Maradyne Wire Harness with Engine Temperature Switch and Relay
    Wiring harness kit operates an electric radiator fan according to engine water temperature. Kit includes heavy gauge wire harness, relay, weatherproof fuse, electrical connectors, and 185 degree temperature switch.
    Wires are labeled for easy hookup.
    Information provided by maradyne.com Learn More

  8. 30 Amp Relay with Mount Harness  

    30 Amp Relay with Mount Harness

    Part #77-2008
    30 Amp Relay with mount harness
    The relay is used to control the condenser fan while running an air conditioning system. Learn More

  9. Adjustable Thermostat Control Unit  

    Adjustable Thermostat Control Unit

    Part #77-2009
    Adjustable fan thermostat with relay. This is an all in one control unit for any electric fan. The unit comes preset at 160 degrees with a screw to adjust the temperature. The setup includes a relay, directions, and a fuse. The temperature probe goes into the fins of a radiator or heat exchanger. The control unit can be used with single or dual electric fans. The unit operates off of the A/C clutch for continuous fan operation. Learn More

  10. Electric Fan Oil Transmission Cooler Mount Kit  

    Electric Fan Oil Transmission Cooler Mount Kit

    Part #790-1000
    Electric fan mount kit. The kit includes eight protective cushions, four straps, and four locks. The kit is designed to mount electric fans, oil coolers, and transmission coolers. The kit is not designed to mount condensers to a radiator. One kit will mount one fan, or cooler. Learn More