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

Derale Combination Transmission and Engine Oil Cooler with Multiple Threads

Part Number: D15902
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$146.99
Retail:$258.73
You Save: $111.74
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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
  • 17W x 12-1/2T x 3/4D Inch
  • With 11/32 Inch Hose Barb Inlets
  • Derale
  • Standard Mount

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



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 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

  • Transmission Cooler/Oil Cooler Combination Recommendation for a 2012 Toyota Tacoma
    For you I would recommend you get a Derale Combination Transmission and Engine Oil Cooler # D15902. You will need to check the area in front of you radiator to be sure that you have enough clearance, but this is a transmission cooler and engine oil cooler in one unit and comes with all the necessary fittings for it to be installed on your 2012 Toyota Tacoma.
    view full answer...
  • Combination Transmission And Engine Oil Cooler For 2009 Chevrolet Surburban
    Adding a cooler to your 2009 Chevrolet Suburban will help extend the life of your transmission and help increase the performance. We do offer a transmission and engine oil cooler designed for GM vehicles. It is part # D15903. This cooler has the same dimensions as the cooler you referenced. It has the 13/16 inch - 16 threads designed for GM applications. The Derale Combination Transmission and Engine Oil Cooler with Multiple Threads, part # D15902 has multiple sleeve nuts and includes...
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  • Best Transmission Cooler for Off-Roading in a 2007 Toyota FJ Cruiser in Year-Round Warm Climate
    The Class rating applied to transmission coolers is to help simplify choosing a cooler for a vehicle. Basically you would think about it in terms of a hitch class rating. So for example if your 2007 Toyota FJ Cruiser has a Class III hitch then a transmission cooler shown as a Class III is a good match. But ultimately you can use any cooler that fits in the intended mounting location. Derale transmission cooler # D13503 is a very popular option. It is a Class III but if you want something...
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  • Recommended Transmission Cooler for 2019 Chevy Colorado Z71
    A stacked-plate cooler has the same design as a plate-fin, but it uses high-flow turbulators which makes it more efficient. Stacked-plate is typically for heavy-duty towing, and I don't think you need a combination cooler either. In your case, I believe a plate-fin will be more than enough to keep your temperature safe. You will want the largest cooler that fits in front of your radiator, which is the 11" wide x 8-3/4" tall x 7/8" deep Derale Series 8000 Plate-Fin Transmission Cooler Kit...
    view full answer...
  • Will Derale Combination Transmission and Engine Oil Cooler # D15902 Fit 2012 Toyota Tacoma
    The Derale Combination Transmission and Engine Oil Cooler, # D15902, measures 17" wide x 12-1/2" tall x 3/4" deep so you'll just need to make sure that you have adequate room available on your 2012 Toyota Tacoma. For maximum cooling ability, mount the cooler between the Tacoma's grille and the AC condenser core. I have included a photo and a video, as well a couple articles, which are packed with helpful information.
    view full answer...
    Image 1 for
  • Replacement Transmission Cooler for 2017 Ford Explorer
    It is possible to bypass the original cooler and install a cooler like the # D33504 Derale Series 8000 Plate-Fin Transmission Cooler. It is typically recommended to install this with your factory cooler to assist in the cooling process. I would not recommend this if you plan on doing some heavy towing. Since this would be the only transmission cooler, you will want to use a larger model like a class IV or V. The # D33504 Derale I already mentioned is a Class IV plate-fin cooler that is...
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  • Transmission Cooler, Brake Controller and Other Parts to Tow with 2016 Toyota RAV4
    For a combination engine oil and transmission cooler the Derale part # D15902 would be a great choice. There isn't a way to safely increase your towing capacity though. Only Toyota could be the ones who could make that call. For suspension enhancement the best option is the Firestone kit part # F4174. You'd have such a low tongue weight rating I wouldn't recommend weight distribution. For sway control the part # 83660 is a really great option though. For trailer wiring you'd need to...
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  • Recommended Transmission and Oil Cooler Combo For a 2013 Ram 1500
    The Derale Combination Transmission and Engine Oil Cooler with Multiple Threads, # D15902, will work well for your 2013 Ram 1500. If you live in a colder climate, you may want to use the Derale Fluid Control Thermostat Kit w/ 3/8" NPT Ports, # D13011, which will allow 90% of the oil to heat faster and warm your motor and cab faster until you hit the 180 degree threshold where it sends everything to the cooler. Another option for you would be the Derale Electra-Cool Combo Engine and Transmission...
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  • Transmission Cooler Recommendation for a 2004 Toyota 4Runner
    The best way to pick out a transmission cooler is to pick out the largest one that will fit in the area in front of the radiator and AC condenser. The part # D15902 that you referenced is a combination oil and transmission fluid cooler so I would not recommend it for you. If you have room for it check out the Derale Transmission Cooler # D13503. This cooler measures 11" wide x 8-3/4" tall x 7/8" deep and would do an excellent job. I attached a review and install video for you to check...
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  • Does Derale Combo Transmission And Engine Oil Cooler Fit A 2007 Honda Odyssey?
    The Derale Combination Transmission and Engine Oil Cooler with Multiple Threads # D15902 is not vehicle-specific so you will just need to make sure you have the room to install it. This unit measures 17" wide, 12-1/2" tall, and 3/4" deep. Various adapters are included so that it is compatible with your vehicle's fittings; I attached a demonstration video for you.
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  • Towing Capacity and Recommended Hitch to Tow a 5th Wheel Trailer with a 2014 Toyota Tundra
    The towing capacity of your 2014 Tundra is determined by Toyota, not either dealership. I recommend checking your owner's manual with your truck's specifics. Or you can contact Toyota with your VIN and they should be able to tell you how it came directly from the factory. I looked up a copy of your truck's manual but I'd still look at a printed copy if possible because as you said it has the tow package and 5.7L V8 but the capacity also depends on the bed length and cab style. From what...
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  • Will the Derale Combination Transmission and Engine Oil Cooler Fit a 2010 Toyota Tacoma
    We have not had a chance to install the Derale Combination Transmission and Engine Oil Cooler, # D15902, on a Toyota Tacoma yet, so the best way to determine if this cooler will fit your 2010 Tacoma is by measuring the space you have available in front of the AC condenser or Radiator. I have attached a photo showing the ideal locations to install a supplemental cooler for you to check out. This cooler measures 17 inches wide x 12-1/2 inches tall x 3/4 inch deep. Another factor to take...
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    Image 1 for
  • Tow Package Recommendation for a 2011 Toyota Highlander
    We have everything that you need to set up your 2011 Toyota Highlander for towing. First, if you don't already have a trailer hitch, I recommend installing the Draw-Tite Max Frame Class III Trailer Hitch # 75726 because it has more than enough capacity for your vehicle and it is rated for use with a weight distribution system if necessary. Next, if you don't already have a tail light wiring harness with a 4-pin connector like part # 118449, then you will want to install this item as well....
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  • Compatibility of Derale D15902 Transmission/Oil Cooler w/ 2014 Ford Explorer
    The Derale # D15902 isn't a vehicle specific product, but you'll want to measure to see if there's available space for the heat exchanger. The best and most efficient place to mount the heat exchanger is directly behind the grille, in front of the radiator and A/C condenser. You'll want to ensure that there's sufficient space to accommodate the 17 inch wide x 12-1/2 tall x 3/4 inch thick heat exchanger. The sandwich adapter for the oil filter includes a 22mm x 1.5 sleeve nut, which is...
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  • Recommended Towing System Components Including Transmission and Oil Cooler for 2016 Ford Explorer
    For your 2016 Ford Explorer XLT, I recommend you start with the hitch, wiring, and ball mount. For a hitch, I recommend the Draw-Tite # 76034. For your trailer wiring, I recommend the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118540. It sounds like you will be towing heavier trailers, so I also recommend the Universal Installation Kit for Trailer Brake Controller # ETBC7 and brake controller # 90195. Then for a ball mount I recommend the Curt Channel Style Adjustable...
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  • Best Engine Oil and Transmission Cooler for 2019 Ford Explorer
    The rule when it comes to coolers is that the larger the better because the more surface area the cooler has the more it can cool the fluids. For a combination oil and transmission cooler for your 2019 Ford Explorer I recommend the Derale Combination Transmission and Engine Oil Cooler with Multiple Threads # D15902 which is 17" Wide x 12-1/2" tall x 3/4" deep. This combination cooler will cool both engine and transmission fluid and uses copper tubing and aluminum fins because the copper...
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  • Pressure Rating of Derale Transmission Cooler
    The Derale Combination Transmission and Engine Oil Cooler # D15902 will not build additional pressure, if that is what you are asking. The Derale transmission coolers, as well as their fittings and hoses, are rated for up to 300 psi if that was the flow you were referring to.
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  • Transmission and Power Steering Coolers for a 2007 Honda Pilot
    For cooling two different systems, using a combination cooler would be a good way to go because it saves some space in the engine compartment and you only have to mount one cooler. You could use a kit like # D15902. You would not use the oil filter parts because they are not used by the power steering system. This is the easiest way to go if you do not want to mount two coolers. Power steering coolers are on the small side, see link. The fluid from the power steering pump will flow through...
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  • Transmission/Oil Cooler Recommendation for 2012 GMC Yukon XL
    I'd recommend a combination transmission/oil cooler like the Derale # D15902. The cooler would mount just behind the grille in front of the radiator. The transmission circuit would tap into the return line from the radiator to the transmission, and the oil circuit would tap in via a sandwich adapter that installs between the oil filter and the filter landing on the engine. The kit includes the cooler, the hoses, the fittings and the sandwich adapter. Also recommended is the # D13035 fitting...
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  • Recommendation for a Combination Oil and Transmission Fluid Cooler for F-150 Ford 5.4 liter engine
    Since you are looking for an engine oil and transmission fluid cooler recommendation for your Ford F-150 I would recommend you get a Derale Combination Transmission and Engine Oil Cooler with Multiple Threads # D15902. This will provide you with a transmission fluid cooler and an engine cooler in one unit. This also comes with several thread sizes for the filter to ensure compatibility with your vehicle. To ensure that you have enough room to install this product on your vehicle I would...
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  • Recommended Transmission and Oil Cooler for 2013 Nissan Altima
    The ambient temperature can definitely have an impact on your engine and transmission. My recommendation for your 2013 Nissan Altima is to use the Derale Combination Transmission and Engine Oil Cooler with Multiple Threads # D15902. This will cool your transmission and engine oil to allow your engine to operate in a similar way to what you currently experience in the cooler weather. If you just want the transmission cooler the Derale Series 8000 Plate-Fin Transmission Cooler Kit w/Barb...
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  • Is It Ok To Use A Transmission Cooler With Smaller Hoses Than The Factory Lines In The Vehicle
    Hey Chris, An 1/8" difference between the factory lines and the lines included with the Derale Transmission Cooler # D15902 isn't going to be an issue as long as you properly secure the lines together with the appropriate coupler.
    view full answer...
  • Recommended Transmission Fluid and Engine Oil Cooler for a 2005 Dodge Grand Caravan
    The Derale Series 8000 Plate-Fin Transmission Cooler part # D13503 is 11" wide x 8-3/4" tall x 7/8" deep and the Derale Series 8000 Plate-Fin Transmission Cooler part # D13502 is 11" wide x 7-1/4" tall x 7/8" deep. As you mentioned the only difference between the two are their size. The larger cooler will provide more cooling power for your vehicle's transmission. Neither of them would cause any damage to the vehicle if installed correctly. If you are looking for both a transmission fluid...
    view full answer...
  • Wiring to Install an Electric Brake Controller in a 2014 Chevrolet Tahoe
    The wires to install an electric brake controller into your 2014 Chevrolet Tahoe are already under the dash but unfortunately there is no plug-in adapter. You'll need to hardwire the Prodigy P3 # 90195 once you find the wiring. I've linked an article that shows the wiring you'll need to find. Transmission and oil coolers are never a bad idea when towing. Both can prolong the life of your Tahoe. Since you're considering both I suggest getting a combination cooler like the Derale # D15902....
    view full answer...


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