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  1. Transmission Coolers
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  3. Transmission and Engine Cooler
  4. With 11/32 Inch Hose Barb Inlets
  5. Standard Mount
  6. 17W x 12-1/2T x 3/4D Inch
Derale Combination Transmission and Engine Oil Cooler with Multiple Threads

Derale Combination Transmission and Engine Oil Cooler with Multiple Threads

Retail:$258.73
Our Price: $144.88
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Transmission Coolers
Shipping Weight: 10 lbs
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Derale Transmission Coolers - D15902
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17" Wide x 12-1/2" tall x 3/4" deep, tube-fin cooler improves your vehicle's overall performance by ensuring proper fluid temperatures for both its engine and transmission with one compact system. Great Prices for the best transmission coolers from Derale. Derale Combination Transmission and Engine Oil Cooler with Multiple Threads part number D15902 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (15)
  • Q & A (0)
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Derale Transmission Coolers

  • Transmission and Engine Cooler
  • With 11/32 Inch Hose Barb Inlets
  • Standard Mount
  • 17W x 12-1/2T x 3/4D Inch
  • Derale

17" Wide x 12-1/2" tall x 3/4" deep, tube-fin cooler improves your vehicle's overall performance by ensuring proper fluid temperatures for both its engine and transmission with one compact system.


Features:

  • Keeps both engine and transmission cool with just 1 system
    • Engine oil and transmission fluid flow through separate tubes inside the same core for effective, simultaneous cooling
  • Improves functioning and overall performance of transmission and engine
  • Extends life of both transmission and engine and prolongs period between necessary fluid changes
  • Cuts down on heat-related failures
  • Designed with copper tubing expanded into aluminum fins for maximum heat transfer
    • Copper is the best material for conducting the heat out of the fluid while aluminum is ideal for transferring and dissipating that heat
  • Protected from possible damage during installation by plastic fin guards and powder coat finish
  • Includes:
    • Universal thermostatic sandwich adapter to provide external oil lines
    • Multiple sleeve nuts to ensure proper thread size
    • High-temperature, OEM spec hose with stainless steel clamps
    • Nylon mounting rods with pads
    • Bendable, metal mounting brackets
    • Insta-dapt radiator adapter
    • All necessary hardware
  • Made in USA


Specs:

  • Dimensions: 17" wide x 12-1/2" tall x 3/4" deep
  • Inlets: 11/32" hose barb
  • Engine filter thread size: 3/4"-16, 13/16"-16, 18 mm x 1.5 mm, 20 mm x 1.5 mm and 22 mm x 1.5 mm
  • Hose lengths:
    • 1/2" Diameter x 10'
    • 11/32" Diameter x 4'
  • 1-Year warranty


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. Add to that the unique turbulator technology - whereby fluids are agitated continuously to not only facilitate heat transfer, but also to prevent any undesirable drop in pressure - and you have an easy and effective cooling system.



15902 Derale Universal Combo Transmission and Oil Cooler with Installation Kit

Item # D15902

Installation Details D15902 Installation instructions



Customer Satisfaction Score:


Customer Reviews

Derale Combination Transmission and Engine Oil Cooler with Multiple Threads - D15902

Average Customer Rating:  4.1 out of 5 stars   (15 Customer Reviews)

17" Wide x 12-1/2" tall x 3/4" deep, tube-fin cooler improves your vehicle's overall performance by ensuring proper fluid temperatures for both its engine and transmission with one compact system.

by:

Package was delivered on time. Installed it the next day. Didn't realise it's for oil and transmition. Just needed the oil cooler. Either way it's installed. Took a bit as I mounted in a different location than in front of radiator. Only did the oil. Already have a trany cooler. However I might loop into the other side for a trany and use the whole radiator. So far so good

Morris

7/4/2023

1 year later and still going strong. It does make a difference but have t measured the temp. However, pulling a 32 foot travel trailer I do notice a difference when I turn the fan on



by:

Without a video for my 2014 explorer and with limited written instructions I chose to find a repair shop that would do the installation. It cost me $360 to have the dual cooler installed. Most places won't consider third party parts to install and others that wanted to charge from $600 - $800 to install. Removing the front cowling, bumper, & headlights proved to be too big of a challenge without adequate instructions. Also following the installation I drove cross country pulling a trailer and I didn't trust my self with the work, and at near 70 years I no longer want to tackle such a job. Other than above I made it to California with out incident.
PS, it would have been helpful for an estimate of the additional engine oil and transmission fluid it would take to fill the new system.



by:

This is a good product and installation was fairly straight forward. The directions do not address the transmission connection to the cooler. If it did, someone would have realized a part was missing from the kit. If you are installing this cooler on a Dodge you will need a different connector than the one provided. Dodge uses a snap in, rather than screw in, connector for the transmission line. I only discovered this by watching a video online which actually gives the Derale part number for the connector (I don't remember what it is). I explained this to the customer service agent and he did not believe me nor would he send me one for free. Since I ordered this kit specifically for a Ram I feel this adaptor should have been included in the kit. Disappointed about that, otherwise it seems like a good kit. I haven't tested it yet since I am waiting for the adaptor.



by:

I have not had a chance to install this unit yet. From the looks of it though it is worth it. Install should be a breeze too. I purchased this for a 05 Dodge Caravan. It cam with all the different oil filter adapters color coded for the filter you use.

Chris D.

11/29/2015

How was the install? Are you happy with it? Any things you wished you knew before you began the install?- thanks. - getting ready to do the same



by:

I installed the etrailer derale transmission cooler on my 2012 Toyota Tacoma. Hauled home a 3500lb tractor 3000 miles up hilly terrain and had no problems at all. Works great.



by:

I haven't had the transmission cooler installed yet but the service I received in ordering and the shipping was way above what I ever expected. Very friendly customer reps and they know their job.



by:

Easily installed to an 05 town and country. I think the 3/8 compression/ barbed fittings should be included in the kit though. Also do yourself a favor and make sure you get the hoses on the cooler before you tie it in place cause they go on HARD. Otherwise pretty simple. Installing for towing purposes. Took about 1 hour complete.



by:

This cooler does a good job keeping transmission oil engine oil cooler.



by:

This kit was easy to install on my application and works very well.



by:

Everything arrived intact, no damage. Instructions were clear. Products were put on with ease. Thanks



by:

Received it packaging was great the cooler was in perfect condition all items seem accounted for. Cant wait to install it.



by:



by:

Tranny side had no problems. Oil side kept leaking and was eventually disconnected. Hose clamps for hoses need to be replaced with sealed units.



by:

The kit is excellent, with a great price. I haven’t installed it yet. The kit doesn’t include the reducer for the smaller hose. Fast shipping and great support. Detailed Instructions would be extrodinarilly helpful.



by:

The customer service is excellent thanks for the product. It is exactly as on the web site. Installing it on my truck. Honest, honorable people. I will continue to do business with. Thanks again


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See what our Experts say about this Derale Transmission Coolers

  • Recommended Transmission and Oil Coolers for 2019 Ford F-150 3.5L Ecoboost
    For a transmission cooler for your 2019 Ford F-150 3.5L Ecoboost I recommend the Derale Series 8000 Plate-Fin Transmission Cooler Kit w/Barb Inlets # D13503. If you want both the transmission and oil cooler, then I recommend the Derale Combination Transmission and Engine Oil Cooler with Multiple Threads # D15902 for the basic cooler that can be mounted to your radiator. If you want a cooler that also has the fan so it can be mounted anywhere, then I recommend the Derale Electra-Cool Combo...
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  • Engine Oil and Transmission Cooler Recommendation for 2016 Toyota Highlander
    The Derale Combination Transmission and Engine Oil Cooler with Multiple Threads # D15902 that you referenced is exactly what you are looking for and comes with everything needed to install. It is a combo oil and transmission cooler that comes with an oil filter fitting that is correct for your 2016 Toyota Highlander. This will do an excellent job cooling both the oil and transmission fluid of your Highlander so I do recommend it for you.
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  • How to Determine Which Transmission Line is the Return Line for Installing a Transmission Cooler
    The method we use to determine the correct line to install a transmission cooler on is pretty simple. You want to install the cooler on the return line. To determine which line is the return line you will want to start with your truck totally cooled off. Start the truck and put it in drive, apply the brakes firmly and then apply the accelerator slightly so that the rpms climb. Put the truck back in park and shut it off. Now go out and feel the two lines leaving the radiator. The cooler...
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  • Parts Needed to Install a Trailer Brake Controller on a 1999 Ford E-350 Econoline Van
    In order to install a brake controller on your 1999 Ford E-350, the first thing you are going to need is a 4-Way trailer connector # 118344. I have included a link to the isntallation instructions for you to view. Next you will need a 4 and 7-Way installation kit # ETBC7. This will provide the 7-Way, while retaining the use of the 4-Way, and all of the wiring needed to install the brake controller. I have included some links that will explain the ETBC7 installation for you. And finally...
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  • Do Fittings Come With Transmission and Engine Oil Cooler for 2016 Ram 1500
    The Derale Combination Transmission and Engine Oil Cooler with Multiple Threads # D15902 comes with everything needed for installation. It is a universal part that uses an Insta-dapt radiator adapter for the vast majority of 5/16" transmission lines, so it should work for your 2016 Ram 1500. If not you may have to cut or flare your lines, though this is rare. There is unfortunately no list or guide that tells us what you have due to the universal nature of these coolers. I have linked...
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  • Comparing CFM Output of Stock Electric Fan in 2011 Ford Escape V6 and Flex-a-lite Electric Fans
    I did a little research and it looks like the stock fan in a 2011 Ford Escape is 500 to 650 cubic feet per minute. Flex-a-lite fan # FLX412 puts out 2,500 cubic feet per minute but draws much more power, 22 amps. The electric fans we sell are universal items so you have to go by the dimensions of the item and compare that to the available space in the vehicle's engine compartment. Keep in mind this is a puller fan meaning that it goes between the radiator and motor and pulls air through...
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  • Tranny and Engine Oil Cooler Recommendation for 2006 Cadillac Escalade
    For a combination engine oil and transmission fluid cooler the Derale combo cooler part # D15902 that you referenced would fit and work well. It will give you the needed extra cooling power for the transmission fluid and engine oil just like you need. Looks like you are already using weight distribution but still have a bit of suspension sag. So you'd want to verify that your loaded tongue weight falls within the range of the WD system and that it is set up properly. For additional suspension...
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    Image 1 for
  • The Best Oil and Transmission Coolers for a 2014 Ford Explorer
    You do not have to add an oil cooler or supplemental transmission cooler if you do not want to. but Ford might require it to reach the maximum tow rating for your 2014 Ford Explorer. You will want to check the owners manual to determine if those items are required. It would not be a bad idea to add them even if you do not have to. They will help protect and prolong the life of the vehicle motor and transmission. I recommend a combination cooler # D15902 which is both a transmission and...
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  • Transmission/Oil Cooler Combination Kit Recommendation for a 2008 Toyota Tundra
    We do sell combination oil/transmission coolers. Check out the Derale Combination Transmission and Engine Oil Cooler # D15902. This is a single unit that has two sections, one for cooling transmission fluid and the other for cooling engine oil. I did some checking and this cooler does come with a fitting that is compatible with the oil filter on your 2008 Toyota Tundra so it should work very well for you. The kit does come with generic installation instructions that will detail how to...
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  • Is Derale Transmission and Engine Oil Cooler D15902 Compatible With 2007 Honda Pilot EXL
    The combination transmission/oil cooler will work great on the 2007 Honda Pilot EXL. When it comes to choosing a transmission and oil cooler like part # D15902 the biggest concern is finding the space to install it. The cooler will be the most efficient when installed between the grill and AC condenser. The cooler is 17" Wide x 12-1/2" tall x 3/4" deep. I have attached an installation video for your reference on a Toyota but the installation will pretty much be the same.
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    Image 1 for
  • Combination Engine/Transmission Oil Cooler # D15902 Recommendation for a 2003 Dodge Ram 1500
    For your 2003 Dodge Ram 1500 Quad Cab truck with a 5.7 liter Hemi you could use the Transmission/Engine Oil Cooler # D15902 that you referenced. This should greatly reduce the transmission fluid and engine oil temperatures to prolong the life of the transmission and engine in your vehicle. I attached FAQ articles on transmission coolers and engine oil coolers for you to check out.
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  • How Does the Transmission Cooler Portion of D15902 Route to Vehicle
    In the install video for the Combination cooler part # D15902 that you referenced it is used as a transmission and power steering fluid cooler so it does not show it getting attached to the oil filter system. The return line of the factory transmission cooler (radiator port) gets run to the inlet of the Derale cooler and then the outlet of the Derale gets run to the return line of the factory system that runs back to the transmission.
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  • Recommend a Combination Oil and Transmission Cooler For 2010 GMC Yukon XL Denali
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  • How To Identify The Transmission Return Line on the 2005 Chrysler 300 2.7L For a Derale Cooler
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  • Recommended Transmission Fluid and Engine Oil Cooler for a 2009 Dodge Caliber R/T
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    When installing the Derale # D15902, the Universal thermostatic sandwich adapter is used to add your oil lines to the cooler. It's not necessary to install the adapter during installation if you don't want to have your oil cooled as well. Using this cooler without the adapter will only bring the temperature of your coolant down and not the engine oil with this type of installation. You could look to see if there is an oil filter available that would allow you to use this feature or you...
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    I have the perfect engine oil and transmission fluid cooler combo for the 5.4L V8 engine in your 2006 Ford F-150. The Derale Combination Transmission and Engine Oil Cooler with Multiple Threads part # D15902 uses one unit to cool both engine oil and transmission fluid. The combo cooler eliminates the need for a separate engine oil and transmission fluid cooler to be installed which ultimately blocks large amounts of airflow to your truck's radiator. As long as you have 17" wide x 12-1/2"...
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    Image 1 for
  • How Transmission Fluid is Cooled With Derale Combination Transmission and Engine Oil Cooler # D15902
    On the Derale Combination Transmission and Engine Oil Cooler, part # D15902, the engine oil and transmission fluid flow through separate copper tubes inside the same core that uses aluminum fins on the cooler for maximum heat transfer. The transmission cooler is installed inline with the factory transmission cooler on your vehicle now. The fluid will run from the transmission to the factory transmission cooler. Then, out of the factory cooler and into the Derale combo cooler, where the...
    view full answer...
    Image 1 for
  • Which Transmission Line of 2005 Chrysler 300 is Return Line for Installing Transmission Cooler
    Your 2005 Chrysler 300 has the 42RLE transmission in it which means the top line is the return line and the line the cooler should be installed on like the # D15902 and the bottom line is the send line.
    view full answer...


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