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  1. Accessories and Parts
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  3. Radiator Fans
  4. Thermostat
  5. 15 Amps
Derale Single-Stage Thermostat Fan Control with Push-in Radiator Probe

Derale Single-Stage Thermostat Fan Control with Push-in Radiator Probe

Item # D18738
Retail:$40.43
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Accessories and Parts D18738 - 15 Amps - Derale
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Automatically control your electric radiator fan with this thermostatic switch. When fluid temperatures exceed 180 degrees, the fan turns on to provide additional cooling. If the temperature drops to 165 degrees, the fan stops, saving power. 1-636-306-4830 to order Derale accessories and parts part number D18738 or order online at etrailer.com. Free expert support on all Derale products. Great prices and Fastest Shipping for Derale Single-Stage Thermostat Fan Control with Push-in Radiator Probe. Accessories and Parts reviews from real customers.
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Derale Accessories and Parts - D18738

  • Radiator Fans
  • Thermostat
  • 15 Amps
  • Derale

Automatically control your electric radiator fan with this thermostatic switch. When fluid temperatures exceed 180 degrees, the fan turns on to provide additional cooling. If the temperature drops to 165 degrees, the fan stops, saving power.


Features:

  • Conserves power by shutting off radiator fan if fluid temperature falls below 165 degrees
  • Provides necessary airflow for sufficient cooling by switching fan on when temperature reaches 180 degrees
  • Includes push-in radiator probe, wiring and connectors
    • Relay harness (sold separately) may be required for fans that draw more than 10 amps
  • Made in USA


Specs:

  • Maximum capacity: 15 amps
  • 1-Year warranty


18738 Derale Standard Series Single Stage Fan Controller with Push-In Radiator Probe

Installation Details D18738 Installation instructions




Customer Reviews

Derale Single-Stage Thermostat Fan Control with Push-in Radiator Probe - D18738

Average Customer Rating:  3.0 out of 5 stars   (1 Customer Reviews)

Automatically control your electric radiator fan with this thermostatic switch. When fluid temperatures exceed 180 degrees, the fan turns on to provide additional cooling. If the temperature drops to 165 degrees, the fan stops, saving power.

by:

Well the product itself appeared very useful. Everything is included to make it work and all you really need is a set of crimpers. However, when I installed the thermostat into my radiator it never got hot enough to make the fans turn on. I'm not exactly sure why this is but nonetheless this made the product unusable for me. So I kept the wiring and ordered a thermostat that installed into my engine block. Not a bad product, just didn't work for my application.



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See what our Experts say about this Derale Accessories and Parts

  • Fuse Holder Wire Gauge of Derale Single-Stage Thermostat Fan Control # D18738
    I spoke to my contact at Derale and he informed me that the fuse holder of the Derale Single-Stage Thermostat Fan Control with Push-in Radiator Probe # D18738 has a 14 gauge wire on it and the fuse included is 15 amp.
    view full answer...
  • Availability of Cooling Fan Probe Switch
    Sounds like you might be looking for the # D18738, Derale Single-Stage Thermostat Fan Control with Push-in Radiator Probe. You will need all the relay wiring harness for this unit if your fan draws more than 10 amps. In the Derale Single-Stage Thermostat # D18738 the cooling fan is automatically activated when the fluid temperature reaches 180 degrees and then shuts off when the temperature is below 165 degrees. This unit will have a maximum capacity of 15 amps. I have linked the above...
    view full answer...
    Image 1 for
  • Thermostat Recommendations for an Electric Fan
    For an electric fan you would need to use a different thermostat control like # D15721 for an in-line or # D16720 for a thread-in style. The thread in style is recommended for fans that draw more than 10 amps. Each of these thermostats is rated higher than the 8 amps your fan is drawing. The thermostats will start the fan if the temperature gets above 180 degrees. No switch or additional harnesses (other than regular wire appropriate for this application) are needed.
    view full answer...
  • Will a Derale Transmission Cooler Kit D13503 Work on a 2006 Nissan Titan Towing a 5th Wheel Trailer
    The Derale Series 8000 Plate-Fin Transmission Cooler Kit, item # D13503, will provide extra cooling to help keep your transmission at normal temperatures when towing. Whether or not any cooler will provide enough cooling depends on many factors specifically related to your vehicle and trailer setup. I did a bit of checking on the 2006 Nissan Titan towing capacities and found that the 2006 Titan is rated for somewhere between 9,200 lbs and 9,500 lbs Gross trailer weight, properly loaded...
    view full answer...
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Info for this part was:

Employee DeAnne T
Updated by:
DeAnne T
Employee Daron K
Updated by:
Daron K
Employee Michael H
Expert Research:
Michael H

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