Derale 25-5/8" Dual High-Output, Electric Radiator Fan w/ Aluminum Shroud - 4,000 CFM

Derale 25-5/8" Dual High-Output, Electric Radiator Fan w/ Aluminum Shroud - 4,000 CFM

Item # D16825

lowest price pledge

Retail:$712.99

Our Price: $331.90

You Save: $381.09
Radiator Fans

This item qualifies for Free Shipping

Shipping Weight: 17 lbs

Quantity: 
Derale High-Output Fan Radiator Fans - D16825
zoom in icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
Please enter a valid email address.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

pop out icon replay 360 icon
horizontal rotate icon

Product Images


  • 26 Inch Diameter
  • Electric Fans
  • 4000 CFM
  • Derale
  • High-Output Fan
25-5/8" Wide x 15-1/8" tall x 4" deep, high-powered, dual, electric fan assembly will boost your vehicle's fuel economy and increase torque and horsepower. Aluminum shroud is rustproof and can be painted, polished or anodized. Lowest Prices for the best radiator fans from Derale. Derale 25-5/8" Dual High-Output, Electric Radiator Fan w/ Aluminum Shroud - 4,000 CFM part number D16825 can be ordered online at etrailer.com or call 800-298-8924 for expert service.


  • All Info
  • Reviews (1)
  • Q & A (6)
  • Photos
  • Why etrailer?

Derale Radiator Fans - D16825

25-5/8" Wide x 15-1/8" tall x 4" deep, high-powered, dual, electric fan assembly will boost your vehicle's fuel economy and increase torque and horsepower. Aluminum shroud is rustproof and can be painted, polished or anodized.


Features:

  • Increases fuel economy, horsepower and torque
  • Improves overall performance
  • Has patented, ultra-quiet, skewed-blade design
  • Designed with durable, rustproof, aluminum shroud that can be painted, polished or anodized to fit your application
  • Can be mounted in various locations behind the radiator
    • Puller applications only
  • Includes mounting brackets, hardware and installation instructions
  • Made in USA


Specs:

  • Overall dimensions: 25-5/8" wide x 15-1/8" tall x 4" deep
  • Mounting dimensions: 17-3/8" - 23-5/8" wide x 7-5/8" - 13-5/8" tall x 2-3/4" deep
  • Maximum cubic feet per minute: 4,000
  • Power draw: 24.8 amps per fan
  • High-output motors: 265 watts
  • 1-Year warranty


Whereas belt-driven fans use up power from the engine to turn, electric fans do not, thus removing any unnecessary load and increasing both fuel economy and horsepower. In addition, you do not have to worry about an electric fan's slowing down at low RPM, as many belt-driven fans do, so you are guaranteed sufficient airflow regardless of the vehicle speed.


While this assembly is intended for primary cooling and should, therefore, provide enough CFM to replace your vehicle's factory fan, you will still need to determine the CFM requirements for your engine before making your purchase. And remember, engines that have been modified or vehicles often used for towing may require additional CFM. There is no limit to the number of fans you can install, as long they all fit appropriately and are mounted on the same side of your radiator so that they do not cancel each other out.


Two types of turn-on sources are available for this fan. The Derale Lighted On/Off Switch for Electric Fans (D16740) allows for manual control of your fan so that you can choose when to turn it on and off. Thermostatic controls, on the other hand, send a signal to the fan, directing it to shut off when fluid temperatures reach an appropriate level, thus saving power. Once the temperature climbs again and additional cooling is needed, the fan is automatically turned back on. Thermostat switches can be single-stage with pre-set temperatures - D16735, D16738, D16739, D16720 and D16721 - or adjustable - D16788 and D16789.


Dimensions

16825 Derale High-Output Dual RAD Fans - Aluminum Shroud



D16825 Installation InstructionsInstallation Details D16825 Installation instructions




Customer Reviews

Derale 25-5/8" Dual High-Output, Electric Radiator Fan w/ Aluminum Shroud - 4,000 CFM - D16825

Average Customer Rating:  5.0 out of 5 stars   (1 Customer Reviews)

25-5/8" Wide x 15-1/8" tall x 4" deep, high-powered, dual, electric fan assembly will boost your vehicle's fuel economy and increase torque and horsepower. Aluminum shroud is rustproof and can be painted, polished or anodized.

- D16825
by:

very well made product highest cfm fans i could find plan on installing them into a 67 nova 565 bbc pro street will find out this summer!!! etrailer boxed it up nice and shipped quickly great service i bought from them before and will continue to buy from them very happy with products and service!!! 65068


Comments

I have a motor home with a Cat 3126 engine. The engine is rated at 330 HP. I was wondering if I could replace the fixed belt driven fan with the dual fan 4000cfm unit. I have not been able to get any info. from the Cat. People as to the cfm requirement of this engine cooling system. Any information would be appreciated.

-- comment by: Charles M - 12/10/2013

2398

I spoke with Derale, and we can get a better idea with some information about the radiator core. If you can measure the height, width and thickness of the fin area of the radiator, exclude the frame work, Derale will be better able to help us determine how much airfolw is needed.

-- Patrick B - 12/11/2013

Comments

Patrick: I got around to getting the measuring the radiator in my motorhome. The radiator is 37 12 wide by 28 tall by 4 inches thick. I appreciate your help in this matter. Merry Christmas and have a very Happy New Year.

-- comment by: Charles M - 12/23/2013

2450

I just got off the phone with my Derale guy. He said that 1 of their D16825 dual fan assemblies definitely would NOT be sufficient for cooling a radiator of that size. His recommendation is 2 of the D16837 units. They are similar, to the unit you were originally looking at, just bigger in dimension. Each unit will move 4,000 CFM. They measure 27 inches wide by 16 inches tall with a 3-7/16 overall thickness. The larger size will allow you to spread the airflow more evenly across the radiator and be at a good dimension for the mounts. With a total of 4 fans, it would pull enough air across the radiator to sufficiently cool it. These units include the mounting hardware, but the wiring is sold separately so you can pick how you want it to wire up. The D16837 is a newer unit that we have not added to our site yet. So I've requested that it be added to the site for you, in case you decide you want to make the swap. The link below won't work yet, but it will as soon as the part goes up.I'll also email you when I have confirmation that it has been added to our site.

-- Patrick B - 12/27/2013

2
2

Ask the Experts about this Derale Radiator Fans
Do you have a question about this Radiator Fan?


  • Is Derale Dual Electric Radiator Fan A Variable Speed
  • The Derale Dual High-Output, Electric Radiator Fan, part # D16825, is a single speed system and both fans operate at the same time. There are options available for control of the fans you may be interested in. The first is to use a switch like the Derale Lighted On/Off Switch, part # D16740. This switch is a simple toggle switch that allows you to easily turn your fans on or off. If you wish to install an automatic system, I recommend part # D16789. This will turn the fan on or...
    view full answer...

  • Recommendations for Cooling a C4 Transmission in a 1966 Ford Bronco Rock Crawler
  • It sounds to me like you will definitely want to upgrade your transmission cooler. Since you will not have a cooler that is being cooled by the fluid running through the radiator, I agree that you will need to upgrade or add a cooler to your system. Heat Sink Coolers like the Dual-Pass Heat Sink Transmission Cooler, item # D13266, that you referenced are not nearly as efficient as a plate and fin cooler or a cooler with an electric fan added. If you are running an electric fan with...
    view full answer...

  • Electric Radiator Fan that Pushes Air Through Radiator from the Front
  • Derale Radiator Fan # D16825 is meant as a puller application only. If you need a pusher for in front of the radiator you can use # FLX365 which can be a pusher or a puller.
    view full answer...

  • 4,000 CFM Electric Fan Recommendation
  • The Derale 25-5/8" Dual High-Output, Electric Radiator Fan w/ Aluminum Shroud # D16825 that you referenced can move 4,000 CFM In case you were wondering, each fan can move 2,000 CFM.
    view full answer...

  • Total Depth of Derale Dual HO Electric Radiator Fan w Aluminum Shroud # D16825 and # D16927
  • The Derale 25-5/8" Dual High-Output, Electric Radiator Fan w/ Aluminum Shroud # D16825 that you referenced has a depth of 3-1/2 inches. The part # D16826 that you looked at also shares this same depth. The Derale 26" Dual High-Output, Electric Radiator Fan-and-Shroud Assembly # D16927 that you also referenced has a depth of 3-3/4 inches. I attached an FAQ article that you might find helpful on electric fans to the right as well.
    view full answer...

  • Will a Derale Electric Radiator Fan Fit a 2007 Nissan Armada
  • To determine if the Derale electric radiator fan # D16825 will fit your 2007 Nissan Armada, you have to look at its external dimensions and compare that to the available space in the engine compartment of your Armada. The fan is 25-5/8 inches wide, 15-1/8 inches tall, and 3-1/2 inches deep. In metric units it is 65 cm by 38-1/2 cm by 8.9 cm. This is a puller fan only meaning it has to be between the radiator and motor and pulls air through the radiator. You would not wire it directly...
    view full answer...


Do you have a question about this Radiator Fan?




  • Why etrailer.com?

    At etrailer.com we guarantee:

  • Highest quality radiator fans for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate radiator fan information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Satisfaction Guarantee
    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Updated by:
DeAnne T
Expert Research:
Michael H
Expert Research:
Jameson C
Photos by:
Jim W
Updated by:
Brian B

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.