FITS 2005 Dodge Grand Caravan
Derale Dyno-Cool Tube-Fin Transmission Cooler Kit - Class I - Economy

Derale Dyno-Cool Tube-Fin Transmission Cooler Kit - Class I - Economy

Item # D12902

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Transmission Coolers
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2005 Dodge Grand Caravan

3.3L V6 Engine

3.8L V6 Engine

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Transmission Coolers D12902 - Standard Mount - Derale
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Product Images

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  • Tube-Fin Cooler
  • Class I
  • With 11/32 Inch Hose Barb Inlets
  • 15-1/4W x 5T x 3/4D Inch
  • Derale
  • Standard Mount
The best technical support and full transmission coolers installation instructions. Lowest price Grand Caravan transmission coolers guarantee and expert service. Dodge Grand Caravan, 2005 transmission coolers by Derale are available from etrailer.com. For expert service call 800-298-8924 to order your Derale Dyno-Cool Tube-Fin Transmission Cooler Kit - Class I - Economy part number D12902, or order online at etrailer.com.


  • All Info
  • Reviews (84)
  • Q & A (15)
  • Videos (2)
  • Photos
  • Why etrailer?

2005 Dodge Grand Caravan - Derale Dyno-Cool Tube-Fin Transmission Cooler Kit - Class I - Economy

15-1/4" Wide x 5" tall x 3/4" deep, reliable, all-aluminum tube-and-fin cooler extends the life and improves overall functioning of your Dodge Grand Caravan's transmission.


Features:

  • Improves functioning and overall performance of transmission
  • Extends life of transmission and prolongs period between necessary fluid changes
  • Cuts down on heat-related failures
  • Agitates fluid with built-in, embossed turbulators for more efficient cooling
  • Constructed of durable, lightweight aluminum
    • Thermal-conductive metal provides excellent transfer of heat
  • Includes:
    • High-temperature, OEM spec hose with stainless steel clamps
    • Nylon mounting rods
    • Insta-dapt radiator adapter
  • Recommended for compact cars
  • Imported


Specs:

  • Inlets: 11/32" hose barb
  • Overall dimensions: 15-1/4" wide x 5" tall x 3/4" deep
  • Core width: 12-1/4"
  • Distance between inlets: 3-3/4"
  • 1-Year warranty


Note: The Derale Insta-dapt radiator adapter fits most vehicles with 5/16" transmission lines, but not all. In some cases, additional fittings or alteration of the OEM lines or hoses may be required for installation.


Perhaps the simplest type of heat exchanger, the tube-fin effectively cools a variety of automotive systems. The concept is simple: Fluid cools as it travels through the core by transferring heat out to the fins. The fins then provide the surface area necessary for sufficient heat exchange to take place, allowing the heat pulled from the fluid to dissipate into the surrounding air. Quick, easy and effective.

Dimensions

12902 Derale Dyno-Cool Aluminum Tube and Fin Cooler with Installation Kit



D12902 Installation InstructionsInstallation Details D12902 Installation instructions

Video of Derale Dyno-Cool Tube-Fin Transmission Cooler Kit - Class I - Economy


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




Video Transcript for Derale Dyno-Cool Transmission Cooler Kit Installation - 2008 Honda Odyssey

Today on our 2008 Honda Odyssey we're going to be taking a look at and installing the Derali Dyna-Cool Tube Fin Transmission Cooler kit, part number D12902. What this cooler does is it's designed to help the existing cooler that's on the vehicle in order to keep the transmission temperatures down, so whether you're looking for something to help prolong the life of your transmission or if you're looking for something to keep those temperatures cool when you're hauling something behind the vehicle, this is going to do a really good job of helping with that. As you can see, it doesn't add a whole lot to the front of the existing coolers on the vehicle. With the aluminum that it's made of, it gives it a nice finish. If you're able to see it, it definitely still gives it a nice clean look. Our customers really seems to like this cooler because they say it does a good job of keeping the transmission temperatures down, and it's also fairly easy to install. Here's where it hooks up into the existing cooler. We took the return line off, the one going back to the transmission, then we connected a hose from the cooler to send that already cooled transmission fluid coming out of the factory cooler up into the new Derale cooler to cool it down even further before sending it back through that return line into the transmission. Let's go ahead and show you how to install it.

First thing we'll need to do is we're going to need to give ourselves some more room to work so that we can get down here to the front of the radiator condenser. In order to do that we want to take this front clip off. We'll start by removing all these push pins that we see up top here. You can take a flat head screwdriver, just get under it there, pop the center of it out. You should be able to pop them out there.

We'll do that with all of them that are across the top of this plastic cover here. On both sides here we're going to have one of these. This is another one. You just pull the center portion up, and you're probably going to need to use a flat head screwdriver to do that. Pop the center of it out and it should pull up. On either side we're going to have one Phillips head screw right here, so take that out.

Again, on either side, right down here at the corner of the fender where the wheel well meets it, we've got a little push pin that you'll want to pop the center out of. We've got six more, the same style fasteners, right along the front here on the underside. Underneath on this little under body panel we've gt four fasteners on each side. We've got two here, one over here, and one right here at the edge of the wheel well. Those all come out the same style, you pop the center out and then the rest of it will come out as well. If you've got some that are being particularly pesky you can take a pair of side cutters like this, slide them up on either side, and pull the center out like that.

We'll do the same thing for the four on the other side. Once we've got all the fasteners underneath here removed, we can take this out. You may just have to pry at either wheel well a little bit in order to free it up, and we'll be able to take that and set it off to the side. Now that you've got everything on the front fascia here undone and unclipped, we'll be able to begin removing it. You'll want to start over here at the sides by puling outward. We've got some tabs there that hold it in place. You want to be sure to do that same thing on both sides, and then the front we'll pop out from right underneath the headlights there. We'll just leave this sitting up in place right now, and we'll go get the other side loose. You can set that front fascia off to the side. Now that we've got our front fascia off, what we'll need to do it we're going to need to determine which of these two cooler lines here is going to be the one that's the return line. The way that we're going to do that is we're going to need to start the vehicle up and we'll need to brake torque it, which is putting it in gear and keeping one foot on the brake pedal and putting one foot on the gas in order to rev it up. That will get the fluid circulating and let the transmission warm up, then we'll be able to tell which is the return line on the cooler side of the factory transmission cooler. I've determined the return line to be that line right there, because it was a little bit cooler once we got that up to temperature. I'm going to take a little paint marker and put a little mark on it, just n case I forget. That way I know it's that line. The first thing that we'll want to do is we'll want to determine the location that we want to mount our new transmission cooler. When you decide on a mounting location a couple tings you want to think about is, one, where is going to be a good point that my hoses are going to have access to go around to access the factory cooler hoses You also want to think about where is this cooler going to be able to get the most direct airflow coming through the front fascia If you can, you'll definitely want to put it behind some sort of grill on that fascia. Ideally you'll put it on the very front here, but if you dot have room you can tuck it in between the condenser and radiator, or any other type of cooler that you may have in here. The more coolers that you put it behind. The less efficient this one's going to be. With this one, I'm going to put it right up here, and that's going to give me good access to the grill just to the side of the Honda emblem. In order to start mounting that up and giving myself more room to work, I'm going to let the top of this condenser hang out. In order to do that I'm going to take out the 10mm bolt that's on this mounting bracket on either side. Now the top of this condenser, you'll be able to pull it out a little bit to have better access to the back down there. Before we actually install the cooler onto the condenser there, I'm going to put a little bit of lubrication on here so I can slide one end of my hose onto it. You'll want to make sure that you get enough of this hose past the barb that's on the fitting so that you can get a clamp. I'm going and try to get this down a little bit further to make sure I've got plenty of room for a clamp there. I can go to the other end of my hose, slide a hose clamp into place. I can take a flat head screwdriver or quarter inch socket or nut driver and begin to tighten that clamp down. Keep in mind, these clamps don't need to be super tight, but you definitely want to make sure they're tight and not going to go anywhere. If you do put these too tight it is possible for them to break if they get hot and get enough pressure behind them. Looks good right about there. Before we put our cooler up into place, we'll take our tie down strips and we'll slide them through the four mounting holes that we're going to use. Once we've done that we can take these little pads with one sticky side on the back. Peel that sticky side off and slide each one onto our tie downs. What this is going to do is give us a nice gentle mounting point against the cooler behind it. I'll do the same thing for all four of these. Now I'll be able to slide this up into place. You want to be sure to be gentle going through the fins here, to not accidentally damage anything. We'll get it situated into place there. We'll be able to pull out on the top here and work those the rest of the way through. Now you want to take the mounting clips provided in the kit, and here on this side we've got the Derale name, and on the other side it's blank, you've just go these little nibs here. We want that to be facing out away from where we're sliding onto our mounting rods here. On each one we'll slide it over the end, and then it will clip down and zip through. We just want to pull it through there. You want to be fairly gentle with it because you don't want to pull too hard and possibly risk damaging something. We'll repeat that for the other three. Once we've got all four of them installed and tight, and the cooler is nice and secure, come back and any excess that's here on the backside, we can just clip off. We'll do the same thing on all four of them. Now that we've got this hooked up here we can take our little mounting brackets for our condenser and we can reinstall both 10mm bolts. Now the hose that I've got connected up here I can begin to route down toward where those cooler hoses are. When you route this you want to be sure that you don't have any tight kinks in the line or anything because that can cause a lack of fluid flow to the transmission and potentially damage the transmission if you're not careful. Before I get going messing with the cooler hoses that are attached to the vehicle currently you want to get these two clips up here lose so that then you've got a little bit more room to work and pliability in that hose. I'm going to come back to that transmission cooler line that I marked earlier with the paint marker. I'm going to take this clamp and move it up so that I can take that transmission line off. It might be useful to have a flat head screwdriver in order to help pry it up off of there. You want to make sure to have a drip pan to catch anything that might come out. Now that we've got that hanging down there we'll be able to take our hose coming down from the cooler. We'll be able to get about the length that we need in order to come across and hook up onto that connection right there. We can cut about the length we'll need using some hose cutters. We can grab one of our hose clamps, and once we've got our hose routed over to where we need it to be we can slide that hose clamp on there, and then push our hose down onto the fitting. Once it's down far enough over that bar you can begin tightening it down. Again, making sure that's nice and tight, but not too tight. Now I'll take this fitting here, I'm going to take a little bit of transmission fluid, spread it around on there. I'll get a little bit on the inside of the new hose that I'm going to be sliding over it, and then I'll slide it onto that fitting. I can take one of my hose clamps and clamp it on right there. Get that nice and secure. Now I can take the other end of this and I'll be able to install it into the hose that we pulled off the cooler line. Slide that one, and then we can replace our clamp. You want to make sure to get them past the barb that's on the end of that and clamp it down. With this factory spring clamp I can kind of move the hose on here. I don't really like that, so I want to be sure that it's not going to leak. I'm going to move this clamp back up the hose, and then I'm going to install one extra hose clamp, which if you'd like to pick one up you can get one on our site. I'm going to be able to install it right there, and that's going to make me feel a little bit better and help insure that we're not going to have a leak when we're all done and start the car up. Now that I've got my connection made here, what I'm going to do is I'm going to take this cooler line and send it back up, so then I can hook this hose up to the other end of the new transmission cooler. Now I can take the remaining hose and cut it to the length that I'll need. Again, making sure that I don't have any tight bends or kinks in it. Here again I'll take a little bit of transmission fluid, spread it around the inside of the tube there, and get a little bit on the barb fitting. I'll be sliding that on too. Before we connect it we'll want to be sure to slide a hose clamp down over it. We can slowly work it on there. Once we've got it far enough over that barb on the fitting that you'll be able to fit the hose clamp with a little bit of hose coming out on the other side, we'll go ahead and put it up into place and begin to tighten it down. Now that all our hoses are hooked back up we can lower it down and start it up to check for leaks. Now we can take our fascia and begin to put it back up into place. No we can reinstall the rest of our under body paneling. That's going to complete our look at the Derale Dyna-Cool Tube Fin Transmission Cooler kit, part number D12902 on our 2008 Honda Odyssey.


Customer Reviews

Derale Dyno-Cool Tube-Fin Transmission Cooler Kit - Class I - Economy - D12902

Average Customer Rating:  4.6 out of 5 stars   (84 Customer Reviews)

15-1/4" Wide x 5" tall x 3/4" deep, reliable, all-aluminum tube-and-fin cooler extends the life and improves overall functioning of your vehicle's transmission.

- D12902
by:
2004 Dodge Dakota

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



- D12901
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


This is a great after market to substitute for the original. 19879



- D12901
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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



- D12901
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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



- D12906
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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



- D12906
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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

- D18910
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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



- D12213
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


great product easy to install - put it in my 66 mustang as a power assist steering cooler 157550



- D16908
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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


- D12906
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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



- D12904
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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 Transmission Coolers


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 Transmission Coolers


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



- D12903
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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



- D12901
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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 Transmission Coolers


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



- D12903
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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 Transmission Coolers


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



- D12213
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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 Transmission Coolers


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 Transmission Coolers


good show cost effective wood by again 599189



- D12903
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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 Transmission Coolers


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 Transmission Coolers


exactly what i needed 551617



- D16316
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


this product was exactly as described very good 550839



- D12904
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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



- D16308
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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 Transmission Coolers


Worked great 511167



- D12906
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


Simple to install 488126



- D12906
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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



- D12904
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


easy installation & works great, good v alue. 408825



- D12906
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


Great cooler for the money. Very simple to install 395370



- D12901
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


good product at a very good internet price, thanks 374143



- D12904
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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 Transmission Coolers


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 Transmission Coolers


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 Transmission Coolers


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



- D12906
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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 Transmission Coolers


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 Transmission Coolers


Excellent product. Fast shipping! 277139



- D12901
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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 Transmission Coolers


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 Transmission Coolers


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 Transmission Coolers


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



- D12906
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


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 Transmission Coolers


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



- D12906
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


The tranny cooler was really simple to install. Everything you need is in the kit.It took about 45 minutes. Great product. Delivery was quick. Thanks to all, no picture at this time, trucks on the road. 200849



- D12213
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


Everything seemed good with this kit. They aren't kidding about the tight hoses- they are tough to get much past the barb...but they do have to be tight to stay leak-less. 196418



- D12906
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


Have not installed yet but the product looks great. Etrailer.com's service is so fast it's amazing. Dealt with them before and will not hesitate to deal with them again in the future. Great company. 190548



- D12906
by:

Review from a similar Derale Dyno-Cool in Transmission Coolers


top quality,perfect fit! 180949


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Ask the Experts about this Derale Transmission Coolers
Do you have a question about this Transmission Cooler?


  • Complete Tow Package Recommendation for 2008 Honda Odyssey
  • Lets start with a hitch for your 2008 Honda Odyssey. For that the best option is the Draw Tite part # 75270 which is a confirmed fit and has plenty of towing capacity. I attached an install video for this for you to check out as well. For wiring you'd need to start with a 4-way like the # 118438 and then convert it to a 7-way with the # ETBC7 which comes with everything needed to wire in a brake controller as well. Install videos for these two products attached to this page as well. For...
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  • Is a Transmission Cooler Necessary on a 2011 Honda CR-V
  • According to my research, the towing capacity of the 2011 CR-V is 1500 lbs. It appears that at most, you will not exceed 2/3 of this capacity, even when you are towing your heavier trailer. Even though you have plenty of remaining capacity, and even with the OEM cooler (probably incorporated into the radiator), a transmission cooler is really inexpensive insurance for your transmission. A supplemental cooler will do an excellent job of providing extra protection to your transmission,...
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  • Is an Aftermarket Transmission Cooler Recommended for a 2009 Honda Ridgeline with Tow Package
  • Vehicles come with some type of transmission cooler from the factory. The tow package on your 2009 Honda Ridgeline may include an upgraded version of the factory transmission cooler. Whether or not an aftermarket transmission cooler is needed depends largely on how much weight you will be towing and how often you plan to tow. Transmission fluid can not be overcooled but in the winter it will need longer to warm up if you add an aftermarket cooler that works in line with your current system. If...
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  • Is a Transmission Cooler Needed and Do I Need Additional Fluid
  • You are correct on both accounts, a transmission cooler would be recommended for your towing situation, and you would also need to add enough transmission fluid to fill both the new transmission cooler and any lines associated with it. Transmission fluid can not be over cooled, but it is critical in extreme cold conditions to allow the vehicle to warm up before driving. Thank you for supplying information regarding your trailer weight and your vehicle towing capacity please also check...
    view full answer...

  • Recommended Transmission Cooler for 2014 Acura MDX
  • It's definitely possible that the transmission cooler similar to the Derale Class I # D12902 you have installed on your 2014 Acura MDX is too small, but the transmission overheating could have been caused by a few other factors as well. I first recommend making sure that the cooler is mounted in a good location that is getting plenty of air flow. The ideal location for mounting a cooler like this is directly behind the grille, in front of the AC condenser core. The outside temperature,...
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  • Recommended Transmission Cooler For A 2014 Toyota FJ Cruiser
  • Generally speaking, the best transmission cooler to use would be the largest one you have available space for behind the grill and in front of the radiator. The largest available cooler we have as a confirmed fit for your 2014 Toyota FJ Cruiser is the Derale Dyno-Cool Tube-Fin Transmission Cooler Kit part # D12902. This kit comes with everything needed for installation, including instructions which you can also find linked to this answer page. The winter season will not affect performance. This...
    view full answer...

  • Installing Derale Transmission Cooler to Replace OEM Cooler on 2007 Nissan Frontier SE
  • The Derale transmission coolers we sell are designed more as a supplemental cooler that is meant to augment the factory transmission cooler portion of the radiator, not replace it entirely. If you are experiencing the common problem with the radiator leaking causing the engine coolant contaminating the transmission fluid, your best bet really would be to have the original radiator replaced. I did a Google search using the keywords Nissan Radiator Problem and found that Nissan has extended...
    view full answer...

  • How Does a Transmission Cooler Install on a 2007 Nissan Frontier
  • On a transmission cooler like # D12902 or any for a 2007 Nissan Frontier, the new cooler is a supplemental unit. The fluid will flow from the transmission, to the factory cooler in the radiator, out of the radiator, into the new cooler, then back to the transmission. In some cases you can use a cooler to bypass the factory cooler but you would have to block off the factory inlet/outlet cooler ports on the radiator. Also a larger and more efficient cooler should be used. I have included...
    view full answer...

  • Installing Brakes On A Trailer Towed By 2004 Subaru Forester
  • I researched the owner's manual for your 2004 Forester and found the chart for towing a trailer. If you have a manual transmission you can tow a trailer with no brakes that weighs 1000-lbs or less. If the trailer has brakes you can tow up to 2400-lbs. If you have an automatic transmission you are limited to 1000-lbs if the trailer has no brakes and 2000-lbs if the trailer has brakes. It may be more cost-effective to find a trailer that already has brakes installed. Adding brakes...
    view full answer...

  • 2011 FJ Cruiser Transmission Cooler Recommendation
  • The length of hose that comes with the Derale transmission coolers like part # D12902 is 10 feet. That is usually adequate for most vehicles, but on a larger SUV like your 2011 Toyota FJ Cruiser a long hose like part # D13017 could be needed. In most cases the line needed can be pretty short since typically the fittings and lines that get removed and used are all right near the radiator. Typically you don't need a long section of hose unless you are going from the transmission all the...
    view full answer...

  • Recommended Transmission Cooler and Brake Controller for a 2008 Dodge Nitro
  • A vehicle equipped with a tow/haul button does not necessarily have a factory transmission cooler. The tow/haul button is used to change the shift points of your transmission for optional performance while towing. Almost all vehicles nowadays have an auxiliary transmission cooler of some sort, however, that's not to say that they are designed for towing or will withstand the transmission temperatures associated with this. Therefore, I recommend installing an aftermarket transmission cooler...
    view full answer...

  • Transmission Line Identification to Install Cooler # D12902 on a 2010 Dodge Caravan
  • You will not want to use the lines on the condenser, you will want to find the metal lines that are threaded into the radiator that come from the transmission. Check on the sides of the radiator, usually there will be metal lines that are run to the radiator and attach with hex bolts. Those are the lines you will need. In order to determine which line is bringing fluid to the cooler and which line is return line from the cooler to the transmission you will want to follow these steps: Start...
    view full answer...

  • Recommendation and Location of Transmission Cooler on 1997 Toyota RAV4
  • The transmission cooler kits are designed to be mounted flush against either the radiator or the AC condenser core. For maximum cooling ability, the heat exchanger must receive the most airflow possible. On your 1997 Toyota RAV4 the location with the greatest efficiency is between your vehicles grille and the AC condenser core. The next most efficient location would be between the condenser and the radiator. To determine what kind of transmission cooler you will need depends on how...
    view full answer...

  • Transmission Cooler Recommendation for a 2006 Pontiac Vibe AWD with a 1.8L Engine
  • Transmission coolers are not vehicle specific, however to optimize efficiency you would want to use the largest transmission cooler available, and mount in the optimal place on your vehicle. The most efficient mounting position is considered to be between the grille and the AC condenser core. Considering the space that is available for you to mount a transmission cooler is most likely limited on your 2006 Pontiac Vibe I recommend either the Derale 9000 Plate and Fin Transmission Cooler...
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Info for this part was:

Photos by:
Theodore B
Expert Research:
Michael L
Updated by:
DeAnne T
Expert Research:
Michael H
Installed by:
Jeff D
Expert Research:
Jameson C
Video Edited:
Joshua S
Expert Research:
Rachael H

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