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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

Item # D15902
Retail:$258.73
Our Price: $151.76
You Save: $106.97
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 - D15902

  • 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

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:

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



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:

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



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

  • Recommendation for Transmission Cooler and Engine Oil Cooler for 2007 Dodge Grand Caravan SXT
    Installing a transmission cooler and an oil cooler on your 2007 Dodge Grand Caravan is an excellent idea if you are hauling or towing loads of any amount of weight. It will help keep the temperatures of the fluids down which will help prolong the life of the transmission and engine in your vehicle. It would not be too much for your vehicle. I would recommend the Derale Combination Transmission and Engine Oil Cooler, part # D15902. With this part you will only need to find room to mount...
    view full answer...
  • 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...
  • Can Derale Combination Transmission and Engine Oil Cooler Fit 2015 Chevy traverse
    The Derale Combination Transmission and Engine Oil Cooler with Multiple Threads # D15902 that you referenced is compatible with your 2015 Chevy Traverse as it comes with several oil filter thread fittings which one of will work on your Traverse with a 3.6 liter engine. The transmission cooler side is even more universal and would also easily fit.
    view full answer...
  • Oil and Transmission Cooler Recommendation for a 2004 Ford F-150 4.6 Liter
    The Derale Combination Transmission and Engine Oil Cooler with Multiple Threads # D15902 will fit your 2004 Ford F-150 with a 4.6 liter engine and comes with everything you would need. This will greatly help reduce the engine oil and transmission fluid temperature so we would recommend it for you. I looked up the threads of your oil filter and they match one of the adapters that comes with this kit. The adapter you would need to use is the 3/4-16 threaded adapter. I attached an install...
    view full answer...
  • Installing Derale Combination Transmission and Radiator Cooler with Factory Transmission Cooler
    Even if you've already got a factory cooler on your vehicle, you will still want to run the transmission lines through the Derale Combination Transmission and Engine Oil Cooler with Multiple Threads # D15902 in conjunction with the factory cooler.
    view full answer...
  • Engine Oil and Transmission Fluid Temperature Cooler Recommendation for 2016 Ram 1500
    Since you are looking for an engine oil cooler and a transmission cooler I would recommend a Derale Combination Transmission and Engine Oil Cooler # D15902. You will be able to route both your transmission fluid and engine oil through this unit to keep both your engine oil and transmission fluid cool. The multiple thread adapter the kit comes with is compatible with your 2016 Ram 1500 with a 5.7 liter Hemi. I attached an FAQ on transmission coolers and engine oil coolers as well as a video...
    view full answer...
  • Will Derale Transmission Oil Cooler # D15902 Fit 2011 Ford Escape
    I was able to confirm that the oil filter thread dimensions of the 2011 Ford Escape do match the included filter thread size of 22 by 1.5 mm. If it's a clearance thing with the sandwich adapter but you have a solution that will allow it to fit I don't see why you'd have a problem. We have not had the chance to install this kit on a Ford Escape with a 3.0 though. The transmission side of the color is more of a universal style of install since it basically just installs after the factory cooler.
    view full answer...
  • 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.
    view full answer...
  • Would the Derale Combination Transmission and Engine Oil Cooler # D15902 fit a 2008 GMC Yukon
    We have not had the chance to install the Derale Combination Transmission and Engine Oil Cooler # D15902 on a 2008 GMC Yukon like yours so I cant say for certain exactly how you would route the oil lines. But I am sure there is a way for you to route the lines so that they avoid pinch points and heat. I am not sure if you will have enough line to install the cooler the way you described, but I did go out to our warehouse and measure the length of the lines and found that the thinner line...
    view full answer...
  • Combination Oil and Transmission Cooler Recommendation for a 1980 Chevy 229 3.8 Liter V6
    The trick to finding the correct oil cooler for a vehicle is to first determine the thread size of the oil filter for the vehicle. Which a 229 3.8 liter V6 engine made by Chevy in 1980 would have M18-1.5 inch threads. The combination cooler part # D15902 comes with the correct thread adapter for your vehicle so it would work well for you.
    view full answer...
  • Will The Derale Combination Transmission Engine Oil Cooler Fit Your 2019 Ford F-150
    Yes, the Derale Combination Transmission and Engine Oil Cooler with Multiple Threads, part # D15902, will fit your 2019 Ford F-150. The oil cooler comes with a variety of thread sizes, ensuring that you will find one that fits your oil filter. I have included a video of this being installed below.
    view full answer...
  • Transmission & Oil Cooler Recommendation for 2009 Chevy Silverado 1500 V6
    For a kit confirmed as a fit for your 2009 Chevy Silverado that includes a transmission fluid and an engine oil cooler we have the Derale Combination Cooler part # D15902 which would work well for both. The oil filter portion of the cooler has multiple thread sizes included which will fit your truck as well.
    view full answer...
  • Transmission Cooler and Engine Cooler Recommendation for a 2009 Nissan Frontier
    The part # D15902 that you referenced is designed to cool the transmission fluid and the engine oil of a vehicle it is installed on. It comes with a thermostatic controlled sandwich adapter so that it will allow your vehicle to reach operating temperature. This kit would not tie into your power steering pump or fluid at all as that is a separate system. You will want to connect the transmission cooler downstream of your factory cooler. This will provide you with the best possible cooling...
    view full answer...
  • 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...
    view full answer...
  • What Does Tow Mode Switch Do On 2004 GMC Sierra
    The tow mode switch on your shifter is designed to change the shift points of the transmission and makes the shifting a little quicker and harder and it is recommended that it be on when towing a trailer. It will downshift faster when going up a hill when towing and will use engine braking when going downhill. A transmission cooler like the Derale Combination Transmission and Engine Oil Cooler, part # D15902 serves two purposes. It is divided in to two sections. It has and inlet and...
    view full answer...
  • What is the Towing Capacity of a 2004 GMC Sierra 1500 4x4 with 5.3 Liter Motor
    For a 2004 GMC Sierra 1500 4x4 with the 5.3 liter the towing capacity will be one of the following depending on how your truck is configured: Regular Cab, Long Bed 3.73 rear end, 8,000 4.10 rear end, 9,000 Crew Cab, Long Bed 3.73 rear end, 7,500 pounds 4.10 rear end, 8,500 pounds Extended Cab, Long Bed 3.73 rear end, 7,600 pounds 4.10 rear end, 8,600 pounds Regular Cab, Short Bed 3.73 rear end, 8,200 pounds 4.10 rear end, 9,200 pounds Extended Cab, Short Bed 3.73 rear end, 7,800 pounds 4.10...
    view full answer...
  • Recommended Transmission Fluid and Engine Oil Cooler for a 2009 Dodge Caliber R/T
    For a transmission fluid and engine oil cooler that will work for your 2009 Dodge Caliber R/T, I recommend the Derale Combination Transmission and Engine Oil Cooler part # D15902. This cooler will do any excellent job of keeping both your engine oil and transmission fluid cool. We have not had a chance to install this cooler on a Dodge Caliber yet but if you take a look at the attached install video, the process will be very similar. The printed install instructions are also attached for...
    view full answer...
  • How to Reduce Engine Oil and Transmission Fluid Temperatures While Towing with a 2013 Ford F-150
    When towing a trailer, the vehicle will be working twice as hard as opposed to normal driving conditions and even more so when climbing a hill. The added workload is going to cause a buildup of heat which would affect both performance and wear lift. If the vehicle is as you put "overheating" and you are within the towing capacity of your truck, there is a problem in the cooling/oiling system and you will need to take the vehicle to a shop to have it looked over. However, if the vehicle...
    view full answer...
  • Will Derale Combination Transmission and Engine Oil Cooler Fit 1997 Chevrolet C/K Pickup Truck
    The biggest concern with installing transmission and oil coolers like part # D15902 is the location you install it. To get the greatest efficiency from your cooler it should be mounted between the grille and the AC condenser. I have attached a drawing of the best locations you can check out. The # D15902 helps keep the engine oil and the transmission fluid cool with just one system and includes several all the necessary hardware needed for installation.
    view full answer...
    Image 1 for
  • What Would Cause Transmission To Seemingly Stop Shifting Properly When It Warms Up
    I've had similar issues with cars and the problem wasn't that the temperature of the fluid was causing the change in shifting/performance the issue was that the fluid filter was getting clogged with debris (from clutches etc. failing and coming apart in the transmission) and therefore not able to allow the transmission to shift properly. Once you park the car the debris falls off of the filter and it appears to shift normal again till it clogs again. The solution is to take the vehicle...
    view full answer...
  • How to Determine Transmission Return Line for Installing Cooler on Ford F-150
    The best way to determine which line on a transmission cooler is the return line from the radiator is to use the following procedure: 1. Start engine while engine is cold 2. Place transmission shift lever in drive for no more than 10 seconds 3. Place in Park, stop engine, and remove keys 4. Identify the oil return line by feeling both oil lines. The coolest line is the oil return line. On the aftermarket transmission cooler the ports are not input specific or output specific. It is not...
    view full answer...
  • 2009 Toyota Sienna Combo Transmission & Oil Cooler Recommendation
    As long as you have room for it, the Derale Combination Transmission and Engine Oil Cooler # D15902 would be an excellent choice to keep your engine oil and transmission fluid cool. This kit measures 17" Wide x 12-1/2" tall x 3/4" deep, you will want to measure the area in front of your radiator to determine if you have clearance for it. I attached an install video for you to check out as well. The oil cooler portion of this kit has a thermostat in the sandwich adapter so that your vehicle...
    view full answer...
  • 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.
    view full answer...
    Image 1 for
  • Recommended Transmission Fluid and Engine Oil Cooler Combo for a 2006 Ford F-150 5.4L V8 Engine
    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"...
    view full answer...
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