What Is Needed To Install the Derale Electric Radiator Fans  

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Expert Reply:

I do have everything that you need to use the Derale 27" Dual High-Output, Electric Radiator Fan-and-Shroud Assembly part # D16837 but it does not come with any of the wiring or relays needed to power the fans as Derale stopped including them. It simply comes with the fans, shroud, and mounting bracket/hardware. In order to wire the fan up I recommend using either the PWM Fan Controller part # D16795 or the Derale Dual-Fan Adjustable Fan-Control part # D16788.

The main difference between the two kits is that the PWM controller will allow the fans to ramp up slowly and then adjust to optimum fan speed in relation to the engine's needs. This will then in turn cool the engine more efficiently and take less power to do so. The Adjustable controller will simply turn on at full power when the engine's temperature reaches a pre-set point so it will not cool as efficiently and will require more power to do its job.

The final option you have to wire the radiator fans is with standard automotive relays and switches so you can control them at your leisure. If this is the route you are going to take then you can use the Derale 40/60-Amp Dual Relay Wiring Harness part # D16765 along with the Derale Lighted On/Off Switch for Electric Fans part # D16740. This will be the most cost effective solution to power the fans.

If you need help wiring any of the above options then please just let me know what one you will be using and I will be glad to provide additional information.

expert reply by: Conner L

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