Derale 12" Dyno-Cool Curved-Blade Electric Fan - 810 CFM

Derale 12" Dyno-Cool Curved-Blade Electric Fan - 810 CFM

Item # D18912

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13" Wide x 12-1/8" tall x 2-3/8" deep, efficient, curved blade electric fan will boost your vehicle's fuel economy and increase both torque and horsepower. Lowest Prices for the best radiator fans from Derale. Derale 12" Dyno-Cool Curved-Blade Electric Fan - 810 CFM part number D18912 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (88)
  • Q & A (3)
  • Photos
  • Why etrailer?

Derale Radiator Fans - D18912

  • 12 Inch Diameter
  • Electric Fans
  • 810 CFM
  • Derale
  • Dyno-Cool Fan
  • Curved Blade

13" Wide x 12-1/8" tall x 2-3/8" deep, efficient, curved blade electric fan will boost your vehicle's fuel economy and increase both torque and horsepower.


Features:

  • Increases fuel economy, horsepower and torque
  • Improves overall performance
  • Designed for ultimate efficiency with curved blades that can move more air
  • Can be mounted on either side of the radiator, as a pusher or puller, with no loss of airflow
  • Includes mounting kit


Specs:

  • Overall dimensions: 13" wide x 12-1/8" tall x 2-3/8" deep
  • Fan dimensions: 12" diameter x 1-1/2" deep
  • Distance between mounting holes: 6-3/16"
  • Maximum cubic feet per minute: 810
  • Power draw: 8.3 amps
  • 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.

Before purchasing an electric fan, be sure to determine the CFM (cubic feet per minute) requirements for your engine. 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 - D16778 and D16779.

Dimensions

18912 Derale Dyno-Cool Curved-Blade Electric Fan Kit



D18912 Installation InstructionsInstallation Details D18912 Installation instructions




Customer Reviews

Derale 12" Dyno-Cool Curved-Blade Electric Fan - 810 CFM - D18912

Average Customer Rating:  4.6 out of 5 stars   (88 Customer Reviews)

13" Wide x 12-1/8" tall x 2-3/8" deep, efficient, curved blade electric fan will boost your vehicle's fuel economy and increase both torque and horsepower.

- D12901
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Two cars, two transmissions radiators, very good product from etrailer.com Thank you ! 128472



- D12906
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


This product is great and installation was not bad at all. Only issue I had was that the GM radiator adaptor should come with this unit when you purchase it for a GM truck. Not as an add-on. Thought I could get it at GM but no go. I Had to work with hoses over 30 min to get them over the fittings even with trans. fluid on the hose and male fitting. So far it looks like trans temp has dropped 30 dg. 134485



- D12903
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Just got it in the mail the other day. Fast shipping, never have had an issue. Having it installed right now. Feels like it is well constructed and should do the job. We shall see what happens. 18179


Comments

What is the rated towing weight for a 1999 Honda CR-V? Does a trannie cooler install fairly easily on the Honda CR-Vs? What is the most effective mounting location for the finned cooler? How does the addition of a trannie cooler effect the volume of fluid and fluid level reading on the dip stick? Thanks for your time and expertise.

-- comment by: Robb B - 10/22/2013

2225

The towing capacity question is a loaded one. For that, I would refer back to the owners manual. It can vary depending on engine, transmission, drive configuration and more. Furthermore, Honda has some very specific guidelines regarding towing so it's best to defer to them. Installing a trans cooler on a full size truck can be easier because of the extra space, but it is not particularly difficult on any vehicle. We actually have a video of a cooler being installed on a 2006 C-V. We remove the front bumper cover for the video, but you may find you do not need to. (See link). The most effective location will be in front of both the radiator and the A/C condenser. As you move behind each cooling device, the efficiency diminishes. We put ours in front of everything on the 2006 in the video. For fluid capacity, plan on an extra 1/2 quart. Depending on cooler size and construction, it will vary some, but 1/2 qt. is a good rule of thumb.

-- Patrick B - 10/23/2013


- D12904
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


This is a customer service review not a product review. Leeza J. was very helpful in helping me get everything needed for adding a secondary transmission cooler to my Chevy truck. I ordered 3 different items and the one item was not in stock and I was promised that I would be notified when it arrived. I was notified that the item was in stock 2 days later and I received the package a few days after that. Very good service that impressed me. 377288



- D12906
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Ive got a 1999 4runner that had the unfortunate luck of having the integrated transmission cooler line rupture inside my radiator. needless to say, the transmission didnt agree very well with having engine coolant running through it and finally died out on me. I bought this transmission cooler to isolate the transmission and the engine cooling systems. The cooler arrived a day ahead of schedule, which is always a bonus. I didnt rate it at 5 stars because I havent had a chance to install it yet and see how it performs, but judging by the reviews that I have read so far, the customer service provided and the prompt delivery, I would say that this transmission cooler will keep my truck running for a good long while. Everything pictured arrived in the box and I have no doubt that it will perform as expected. I will definitely recommend this product and this company to my friends! 30988



- D12906
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Easy install, works great. Installed on a 2001 Jeep Grand Cherokee. I tow a 19' boat and haven't had any transmission issues since. 293582



- D12901
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


This is an excellent price and appears to have more cooling capacity over the OEM cooler. Installed very easily. This was used on an 08 HONDA PILOT 135385



- D12904
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Super easy install. With the installation video on Youtube it took out any of the guess work. The hose could stand to be about 3" - 5" longer if you are going to center in the A frame of an older chevy grill (I have an 06 Avalanche. I had to offset to the passenger side to use the supplied hoses) But, you can get a longer hose easy enough. Just ran over the pass and back and no leaks. Looks good so far! 377410



- D12906
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Very easy install, absolutely no leaks anywhere in the system after putting it into service. I did have to get additional hose for the install due to the location I chose for the cooler (personal preference). I centered it on the bumper side of the radiator to provide the best air flow. Remember to get a quart of transmission fluid to accomodate the larger system volume after the install. I took my grill off to provide the most room for putting the cooler in rather than trying to wedge it between the radiator and grill, made install the nylon fasteners through the radiator and cooler much easier. Should last for many years. 61081



- D12901
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


I installed this cooler on a 2001 odyessey to help prevent a future trans failure.It was delivered quickly when promised,came with everything I needed for installation and had no problems.Overall a good product I would recommend this to anyone. I am also very happy with etrailer.coms service and selection and would definitly use them again. 14807



- D12906
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Works great thanks mine got a hole in it and i replaced it with this one. 130315


Comments

Best thing iv ever invested in an at a great price

Ron - 05/13/2015

11649

- D12906
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


After one of use on a 2005 Honda Pilot, everything is holding up just fine. The one star less is because of the difficulty in installing it on this particular vehicle. Although this is a universal component, it is MUCH easier to install on pickup trucks. Best of luck with a brand new rubber hose going on with any sort of ease. 521316


Comments

Our installers typically use some transmission fluid to make installing the rubber hose on the Insta-dapt fitting easier.

-- Rachael H - 06/13/2018

39688

- D12906
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


I purchased this for my C6 Corvette A6 transmission. I did, however, bypass the radiator and only use the transmission cooler for the C6. I purchased and used the Derale Radiator Adapter fitting 259-13035 for both the top and bottom and just capped them off to keep debris out of the reservoir. I also had to make some custom mounting brackets. This is an excellent product and it keeps the tranny in a great temperature range. 552474



- D16908
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Great staff great products grade A service from customer service will definitely order from etrailer again 26560


Comments

Hi I need to know at what temp. is exactly activated Thanks

-- comment by: LIVIU - 08/09/2013

1868

This fan does not include a thermostat system. It can be wired into the original electrical system and will then operate according to the thermostat system in the vehicle. It can also be wired to an on/off switch but that is usually only done if off-road and race applications. We have plenty of thermostat options, sold separately, for determining the temperature at which the fan kicks on. For example, part D16735 kicks on at 180 degrees and shuts off at 165 degrees. Part D16759 is an adjustable thermostat system. Turn-on temperate can be set any where between 150 and 240 degrees. The turn-off temperature will always be 10 degrees less than the turn-on temperature.

-- Patrick B - 8/9/2013


- D12901
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


The product was just what I needed. The description was accurate, the price was great and the shipping was fast. Thanks Donnie 164228


Comments

Great, no problems

Donald C - 12/12/2015

16154

- D12906
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


I ordered this cooler for my daughter's 2012 Nissan Rogue to fix CVT transmission heating up causing it to into limp mode. When I got ready to install, I found there was no place to connect the hoses to the transmission. The vehicle only had the direct "bee hive" cooler. Install was delayed while waiting to get a "4 tube bee hive" from a different supplier for an additional $114. 551625



- D12902
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


good product form a great company ! my only complaint is this was listed as for my specific truck, but the "insta-dapt" supplied doesn't fit the Dodge truck of my year. even doing my research ahead of time, it seems to be hit or miss whether it would fit as some of them come with 5/16 fittings and some (like mine) come with 9/16 fittings. it doesnt matter the engine size, even other 3.7L dodge trucks of the same year have 5/16 fittings... I think Dodge made a change middle year, but never let the consumer know as mine is a late year '04. no dig deal as I was able to assemble it anyways and got it up and running great and both the radiator and trans are running much cooler now ! I attached the D12902 to the bumper as you will see in attached images. 2 attached images are just before finishing, bumper hasnt been attached yet, one of them is after everything was complete. 189096



- D12906
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


The part itself was easy to install and it does what it is designed to do. Only trouble with installation was with the vehicle, I had to remove part of the front cover on my 09' Avalanche to get to it. Also, I wish I had bought a black one to blend in with the rest of the radiator. 705491



- D12903
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Lacked one connector for my application. 671824



- D12903
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


It appears that my transmission temp dropped about 40-60° adding this cooler. The hose was pretty hard to attach to the cooler, even with lubrication. The hose was also to small for my vehicle so I had to source other parts to make it work. I installed it on a 2017 explorer. 661750



- D12733
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Installed this in a 2017 Honda Ridgeline. Mounted it above the factory cooler that was already in the truck. (Flat fin side towards the a/c condenser). I used the insta-mount zip tie kit and also the flex metal mounts to anchor the cooler to the top of the factory cooler bracket as close to the a/c condenser as possible. The vertical bracket (part of the truck) that runs right down the middle of the a/c condenser has to be cut. All fairly minor fabrication. Hack saw and hand drill stuff. The fan has to be reversed to become a pusher. Followed the hood release cable from the interior to run 12 volts to power the fan on at ignition. Haven’t hooked the trailer up yet so I don’t know if this will resolve the hot tranny situation. ( I could smell the tranny getting hot before especially when we stopped at lights). Change your fluid too. etrailer delivered quickly and the cooler was well boxed and untouched. 656607



- D12213
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Fast shipping and the best customer service. Looking forward to getting the coolers attached and will add some pictures. 628785



- D12904
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Fast Shipping Customer Service is Great. They sent me a list of everything I needed. 615223



- D12906
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


good show cost effective wood by again 599189



- D12903
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


I just installed this on my chevy avalanche. Flipped the bottom brace around in order to mount to. The hardest part is getting the hoses on the cooler and over the return line. I ended up getting a 90 deg quick connection coming from the radiator instead of using the one I got from etrailer. This keeps the hose from bending as much. Also purchase the installation kit with a hose as you will need an extra hose. After install I wish I would have went with the next bigger unit which is 10 high instead of 7 1/2 as I had plenty of room. 591245



- D12906
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Great for the money free shipping anytime you are pulling a heavy load you should always have this 584833



- D12901
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


exactly what i needed 551617



- D16316
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


this product was exactly as described very good 550839



- D12904
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


works well, wouldn't buy one any smaller than this one. 529302


Comments

No issues, good product, thanks etrailer.

Doug - 07/02/2019

57374

- D16308
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Great value, pretty dang good fits well,good product for the $$, much better than those ones everyone else has. I have found the appearance to be pleasing I would recommend 524382



- D12906
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Worked great 511167



- D12906
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Simple to install 488126



- D12903
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


I bought this cooler for my 2007 Chevy avalanche LTZ 4X4 with 5.3 motor. I also bought the adapter the adapter D13035 for my truck as well. It was a quick and easy install. I just got it installed on 2/2/2018 and took the truck for a drive and it has dropped my transmission temp at least 40 degrees. It took me around 40 min to install. Very Happy with this new addition to my truck. FYI if you buy this unit to make it easier i would order an extra Line because the one line will be cutting close to reaching location. 472461



- D12906
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


I was able to install this and the PS cooler in one afternoon. I am not a mechanic, but I am fairly handy. Your milleage may vary. All the parts were correct and fit my 2007 Honda pilot fine. 425956



- D18910
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


I mounted this fan in the puller position on my auxiliary transmission cooler so that I can tow a 15ft travel trailer with my minivan. Installation was sweet. There was an instruction page in the box and enough parts for mounting. I was surprised at how much air this thing moves. I wouldn't call it noisy since the fan spins smoothly and quietly when I tested it out in the open, but when mounted in the congested grill area of my 2012 Dodge Grand Caravan I can definitely hear it hum more than the stock radiator fan. It pushes that much air. I would definitely recommend this product. 413989



- D12904
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


easy installation & works great, good v alue. 408825



- D12906
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Great cooler for the money. Very simple to install 395370



- D12901
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


good product at a very good internet price, thanks 374143



- D12904
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


i put this unit in my 2008 NIssan Titan pickup. we are going to take a 9000 mile trip this summer pulling a 27 ft HI Lo camper. The instructions were very generic. specific unit instructions would be very helpful. the grill was difficult to get out until i found a Youtube video for that. the hose provided was to short, so I made a run to the parts store. the unit appears to be well made. 368894


Comments

we used the cooler in my 08 Titan. we pulled a 27 ft travel trailer thru 28 states and never had any issues

Jim K - 04/19/2018

37441

- D12904
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Everthing as described. From ordering to the home delivery, I was informed every step of the way Good old fashion Americian business! The way it should be done. You guys set the bar high when doing buisness! Thanks a million! 366272



- D12903
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Very good product works well. The reason for 3 stars, it's NOT a direct fit as described when I purchased the product. The transmission lines are fitted to the A/C condenser so they had to be cut and needed to buy a flaring tool to flare the cut transmission lines. I look at the product online and now there's a note stating altering OEM lines may be needed. This wasn't there when I purchased it which delayed my install for another day. 336579



- D12906
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


The trans cooler was easy to install. I had to go and buy some more hose and mounting screws to make it work but I knew that before I started. The hose was because of where I wanted it mounted. The trans cooler is keeping the transmission about 30 to 40 deg cooler then before. 283694



- D16908
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


lasted over 5 years on 24/7/180 on green house just ordered new one. 282988



- D12213
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Excellent product. Fast shipping! 277139



- D12901
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


As always, fast delivery, complete products that fit right at the best price anywhere. Everything I needed to turn Mom's Forester into a tow beast (for a pop up camper anyways)! 267956



- D12904
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Exactly what I ordered. Quick shipping and all parts needed for installation included! Always easy to find what I need at E-Trailer! 251802



- D12904
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


We're an independent auto and truck repair parts were delivered promptly. Seem to be good quality and fit great on our customers unit thanks.. 241851



- D12906
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Nice product not easiest to install hoses but overall nice piece. 229141



- D12906
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


Nice inexpensive transmission cooler. Simple installation, although I didn't use the through radiator plastic ties supplied. Drops transmission temperatures well. 225628



- D12904
by:

Review from a similar Derale Dyno-Cool in Radiator Fans


WOW, My order came fast, I'll be shopping with them again! 212935


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