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  • Part #: 3652|
  • SKU: 8091055

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    • 185 degrees Fahrenheit preset thermostatic fan control
    • For use with Rapid-Cool and Super Duty electric fans
PayPal available for online purchases. Major credit cards accepted online and in store. Pay online, in-store or take advantage of our Pep Boys credit card. Learn more and see additional details in cart.

Hayden Preset Thermostatic Fan Control

185 degrees Fahrenheit Preset Thermostatic Fan Control. Compatible with both Hayden and original equipment fans.
  • 185 degrees Fahrenheit preset thermostatic fan control
  • For use with Rapid-Cool and Super Duty electric fans
  • Probe installs in to radiator fins

Probe Type & Size (IN)
Push-In 3/16 x3
Wire Configuration
2 Single Speed Fans
Load Capacity
30 Amps
A/C Override
Adjustment Range
N/A--Preset 185 degrees Fahrenheit


Hayden Preset Thermostatic Fan Control is rated 3.7 out of 5 by 3.
Rated 1 out of 5 by from Lasted less than 6 months Everything was fine after I had it installed for the first 6 months. All of a sudden my car started overheating in traffic. It turns out the relay went bad which caused the temp to rise in the car and the fan would not kick on. After reviewing the product on-line it appears that this is a common problem with this product. "Thumbs up" to Pep Boys for returning my money no questions asked.
Date published: 2015-09-02
Rated 5 out of 5 by from Better than OEM Straight forward installation. I used it to bypass OEM on 1993 Jeep Grand Cherokee 4.0L that burnt fan relays often. This relay is 50 AMP. It came with a 30 AMP fuse but that wasn't enough for my fan and I had to use 40 AMP. I haven't had any problems with the 50 AMP relay or 40 AMP fuse with the +30 AMP fan. You may need additional wire and connections to install this kit. I needed additional wire and connections and I used 12 gage wire from the battery to the relay and from the relay to the fan. Relay has lead to splice to AC clutch hot wire. Relay uses a 12v hot from ignition-on circuitry and I used a vacuum/diaphragm switch off of the intake manifold between the brake master cylinder and air cleaner. I installed the temperature gage/switch on the upper left corner of the radiator because it was simple to access and above the AC condenser. If you can easily clear a spot for pushing the temp gage through the radiator fins from the back/engine side and also have room to push the retainer clip on from the front with a pliers this is the kit for you. Otherwise you may have to remove some of the front/grill and also drain and free up the fan and radiator to make room. It wasn't too bad on my vehicle I had to remove the entire air cleaner and air intake assembly.
Date published: 2015-04-14
Rated 5 out of 5 by from Fuctions as advertised. Simply put I bought this controller for use with a Hayden fan (3690) which I gave a poor review on, and would not recommend to anyone, ever. That said, this controller has been flawless and completely reliable with the Pro-Form fan I replaced the 3690 with. It functions as advertised - now, if only their fans would - although it's price could be better.
Date published: 2013-05-16
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