Derale Premium, Single-Stage Thermostat Fan Control with Dual Probes - 180 Degrees

Derale Premium, Single-Stage Thermostat Fan Control with Dual Probes - 180 Degrees

Item # D16735

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Control the electric radiator fan with this automatic switch. When fluid temperatures exceed 180 degrees, the fan turns on to provide more cooling. If the temp drops to 165 degrees, the fan stops, saving power. Includes relay, A/C override circuit. Call 800-298-8924 to order Derale accessories and parts part number D16735 or order online at etrailer.com. Free expert support on all Derale products. Guaranteed Lowest Price and Fastest Shipping for Derale Premium, Single-Stage Thermostat Fan Control with Dual Probes - 180 Degrees. Accessories and Parts reviews from real customers.
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  • Reviews (4)
  • Q & A (16)
  • Videos (1)
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Derale Accessories and Parts - D16735

  • Radiator Fans
  • Thermostat
  • Derale
  • 25 Amps

Control the electric radiator fan with this automatic switch. When fluid temperatures exceed 180 degrees, the fan turns on to provide more cooling. If the temp drops to 165 degrees, the fan stops, saving power. Includes relay, A/C override circuit.


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
  • Comes with heavy-duty, 40/60-amp relay harness and A/C override circuit
    • A/C override engages the fan automatically whenever the air conditioner is turned on to help compensate for increased engine load
    • Relay prevents disruption of your vehicle's electrical system and is recommended for fans pulling more than 10 amps
  • Includes both water jacket thread-in probe and push-in radiator probe
  • Made in USA


Specs:

  • Thread-in probe: 3/8" NPT
  • Maximum capacity: 25 amps
  • 1-Year warranty


16735 Derale Premium Series Single Stage Fan Controller with Thread-In and Push-In Probes



D16735 Installation InstructionsInstallation Details D16735 Installation instructions



Video of Derale Premium, Single-Stage Thermostat Fan Control with Dual Probes - 180 Degrees


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of Derale Radiator Fans - D16735

Today we're going to take a look at the Derale Premium Single Stage Fan Control Thermostat with the dual probes. Now, this kit will automatically control your electric radiator fan with this thermostatic switch. It provides necessary air flow for sufficient cooling by switching the fan on when the temperature reaches 180 degrees, and it conserves power by shutting off your radiator fan if that fluid temperature falls below 165 degrees.Now, this kit also comes with this heavy duty 40/60 amp relay harness, and an AC override circuit. The AC override will engage the fan automatically whenever the air conditioner is turned on to help compensate for increased engine load. And the relay will prevent disruption of your vehicle's electrical system, and is recommended for fans pulling more than 10 amps.It does include the thermostatic switch right here. And the kit does include two thermostat probe option, you just choose the option that best fits your application.

It has a thread-in probe option, which will install into a three-eighths inch diameter NPT port either on your radiator, water neck, intake manifold, or cylinder heads. And basically the switch will just thread into that probe. And once you thread that in, and then you install this into your port, make your connections, you'll be ready to go.The other option is just the push-in probe, which you'll install into your radiator fins, and you put it as close as possible to the water inlet on the radiator. And basically what you would do there is the end has threads in it, just install your switch to that probe, stick it through your radiator fins. You use your pad and inaudible 00:01:34 retaining clip to hold it into place.

So you just choose whichever one works best for you.Again, it also includes the heavy duty relay harness and AC override circuit. It does include all the electrical connectors you need, the screws to install the bracket, or the relay. And then some cable ties to take up any slack in wiring. It also has a nice set of detailed instructions that'll describe how to install everything.This kit is made in the USA. A few specs, the switch itself is rated at a maximum of 25 amp continuous draw.

And we mentioned this thread-in probe, it is designed to fit into a three-eighths inch diameter NPT threads.But that should do it for the review on the Derale Premium Single Stage Fan Control Thermostat with the dual probes.


Customer Reviews

Derale Premium, Single-Stage Thermostat Fan Control with Dual Probes - 180 Degrees - D16735

Average Customer Rating:  5.0 out of 5 stars   (4 Customer Reviews)

Control the electric radiator fan with this automatic switch. When fluid temperatures exceed 180 degrees, the fan turns on to provide more cooling. If the temp drops to 165 degrees, the fan stops, saving power. Includes relay, A/C override circuit.

- D16735
by:

Product is of good quality. Delivery was fast. 693820



- D16735
by:

Just as it was advertised. Very fast service! Good company to deal with. 613496



- D16735
by:

My electric fan controls from etrailer.com purchase could not have been better. The items are as advertised, the pricing is excellent, and the shipping was very quick! I have not yet installed product , but know from friends that they are an excellent item for my needs. They will be used in my streetrods, a 1934 Ford Coupe, and a 1948 Ford F1 Pickup. 66133



- D16735
by:

Have not yet installed product , but know from friends that they are an excellent item for my needs. They will be used in my streetrods, a 1934 Ford Coupe, and a 1948 Ford F1 Pickup. 66132


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Ask the Experts about this Derale Accessories and Parts

Do you have a question about this Accessories and Part?


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  • Since you have already added an aftermarket transmission cooler to your Chevy Express 3500, you can make sure you have it mounted in the most efficient location for cooling. The ideal place to mount an aftermarket transmission cooler is behind the front grille but in front of the radiator of your vehicle. Adding an electric fan like the item you selected, Derale Radiator Fans, part # D16834, will help reduce engine temperatures and would be a good option. You will need to measure to...
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  • Locating Correctly Rated Electric Fan to Cool Engine on 1986 Chevy P30 Chassis
  • We do have a large selection of electric radiator assemblies available, such as the excellent Derale 26" Dual High-Output # D16842 that you were looking at, but the exact CFM requirements to cool the engine in your 1986 Chevy P30 is going to be difficult to pin point. This is because the requirements will be different among vehicle manufacturers and will vary depending on your particular application (towing, long distance trips, outside temperature, etc). The Derale # D16842 has a high...
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  • Recommendation of Electric Fan for 1988 Ford Ranger With 2.9L Engine
  • When choosing an electric fan for your vehicle you will want to make sure to get a fan that will give you the correct Cubic Feet per Minute (CFM) for the size of your engine. The CFM is how much air is being moved through your radiator in one minute. The typical CFM requirement for a 6 cylinder engine is 1,600 to 2,000. If your 1995 Ford Ranger is used for towing you will want additional airflow. It is always recommended to go with the highest rated fan. I am including a link to a FAQ...
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  • 1956 Chevy Electric Radiator Fan Recommendations
  • In order to determine the correct fit fan for the front of the radiator on your 1956 Chevy you will need to measure the area in front of your radiator and determine how much room you have to work with. The Derale Radiator Fan # D18910 that you referenced has overall dimensions of 11-1/2 inches wide by 10-3/4 inches tall and 2-3/8 inches deep. If you find that you have room in front of your radiator for a fan with these dimensions then this fan should work for you. However, you should...
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  • Tips for Choosing an Electric Radiator Fan for a 1988 Ford Ranger XLT 4x4 with 2.9 Liter Engine
  • Electric fans like # D18214 are not vehicle specific so if you have the space to install the fan you can use it on your 1988 Ford Ranger. This fan can be mounted on either side of the radiator to either push air through it or pull air through it. If you are using the fan to supplement the factory fan then just make sure that the two fans are not working against each other. For example if the factory fan pulls air through the radiator then the supplemental fan needs to be on the other side...
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  • Replacing Clutch Radiator Fan with an Electric Fan on a 1999 GMC Yukon
  • Pushers are more efficient and more common. A puller is typically only installed when you don't have enough room between your engine and your radiator. It looks like your 1999 GMC Yukon has a 5.7 L V8 engine which means you would want to shoot for a CFM (Cubic Feet per Minute) range of 2,200 - 3,000. The most popular fan that we have in this range is the Derale 17" Radiator Fan # D18217 which has an output of 2,400 CFM. When it comes to fitting your vehicle it really just depends...
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  • Transmission Cooler and Fan Recommendation for a 2010 Nissan Titan SE Towing Travel Trailer
  • A supplemental transmission cooler would absolutely help keep your transmission fluid temperatures down on your 2010 Nissan Titan. Since the heat issue you described is when you are backing your trailer up your best option would be a cooler with a fan since there would be limited air flow while in reverse at slow speeds. Another great thing about the coolers with fans is that you can basically mount them wherever you want since the fan provides all the airflow needed. For that I would...
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  • Are Fans in Derale Radiator Fan # D16927 Recessed Into the Shroud, Available Fans without Shroud
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  • Electric Radiator Fan Recommendations for a 2008 Chrysler Aspen with 5.7L Engine
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  • The Derale Stacked-Plate Engine Oil Cooler, # D15604, that you mentioned would be a good addition to help cool the engine oil in your 1970 Cuda. An oil cooler like # D15604 should provide you with a drop in your water temperatures. Most likely it would be a drop between 10-20 degrees but it really depends on the vehicle and how much airflow the cooler gets. I would recommend checking the specifications for cooling your specific 5.7 liter Hemi engine and going with the manufacturer recommendation...
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  • You will be able to add a thermostatic control to the Derale 16 Inch Tornado Electric Fan # D16516, but it does not come included. I would recommend the Derale Thermostat Fan Control, part # D16735, which will turn the fan on at 180 degrees. This thermostat kit will work with the Derale Tornado Electric Fan # D16516. This Derale Fan is rated at 2,175 Cubic Feet Per Minute (CFM), and would be good for a 4 or 6 cylinder motor. I have linked an FAQ on electric fans that includes a chart...
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  • Electric Radiator Fan for a 1995 Nissan Pathfinder
  • The type of electric fan you use in your 1995 Nissan Pathfinder is going to depend on how much space is available under the hood. There are fans as small as 4 inches diameter and 2-3/8 inches deep and as large as 32 inches and 3-1/4 inches deep. There is likely more space in front of the radiator than behind it. A fan such as # D18217 is 17 inches in diameter and 2-5/8 inches deep. You would need to measure the available space to determine if this fan will fit or if you need to go smaller...
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  • Thermostat Fan Control # D16735 Recommendation for Use with a Derale Radiator Fan # D18910
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  • Recommended Electric Radiator Fan for a 2002 Chevrolet Blazer
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  • What is the Advantage to Switching to a Derale Thermostat Fan Control on a 2006 Polaris Sportsman
  • A stock thermostat that is similar to the Derale Premium, Single-Stage Thermostat, # D16735, might have different temperature settings. This one kicks on at 180 degrees and turns off at 165 degrees. This will help to save power. The 40/60-amp relay harness is probably more heavy duty than the stock one and it has probe options (thread-in and push-in options). Of course the thermostat kit is only as good as the fan you are using. The fan may have been replaced as well and if so that is normally...
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Info for this part was:

Updated by:
DeAnne T
Updated by:
Daron K
Expert Research:
Michael H
Video Edited:
Jeff D

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