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  1. Transmission Coolers
  2. Derale
  3. Remote Cooler
  4. Heavy-Duty Truck
  5. With - 6 AN Inlets
  6. 12-3/4W x 9-3/8T x 4-5/16D Inch
Derale Atomic-Cool Remote Transmission Cooler Kit w/ Fan, -6 AN Inlets - Class V

Derale Atomic-Cool Remote Transmission Cooler Kit w/ Fan, -6 AN Inlets - Class V

Our Price: $261.44
Transmission Coolers

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12-3/4" Wide x 9-3/8" tall x 4-5/16" deep, remote cooler assembly features a high-efficiency, plate-and-fin heat-exchanger core with 500-CFM tornado fan for maximum airflow, ensuring optimum performance for your automatic transmission. Great Prices for the best transmission coolers from Derale. Derale Atomic-Cool Remote Transmission Cooler Kit w/ Fan, -6 AN Inlets - Class V part number D13950 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (4)
  • Q & A (0)
  • Photos

Derale Transmission Coolers

  • Remote Cooler
  • Heavy-Duty Truck
  • With - 6 AN Inlets
  • 12-3/4W x 9-3/8T x 4-5/16D Inch
  • Derale
  • Remote Mount

12-3/4" Wide x 9-3/8" tall x 4-5/16" deep, remote cooler assembly features a high-efficiency, plate-and-fin heat-exchanger core with 500-CFM tornado fan for maximum airflow, ensuring optimum performance for your automatic transmission.


  • Improves performance and overall functioning of transmission
  • Has highly efficient, plate-fin cooler core for optimum heat transfer and minimum pressure drop
  • Offers superior airflow with 500-CFM, reversible tornado fan
  • Mounts anywhere with aluminum mounting brackets
  • Includes:
    • Complete cooler assembly
    • Aluminum AN fittings
    • Brass hose-barb adapters
    • 10' OEM spec hose with stainless steel clamps
    • Additional compression fittings
    • 180-Degree, in-line thermostat for power-saving fan shut-off
    • Insta-dapt radiator adapter
    • All necessary mounting hardware
  • Made in USA


  • Inlets: -6 AN
  • Adapters: -6 AN x 3/8" hose barb
  • Overall dimensions: 12-3/4" wide x 9-3/8" tall x 4-5/16" deep
  • Distance between inlets: 8-9/16"
  • Mounting dimensions: 4" tall x 11-5/8" wide
  • 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.

With a fan-mounted heat exchanger unit, you can be sure that there will always be optimum airflow for your engine oil cooler no matter where your cooler is mounted or what sort of environment you are traveling through. Couple that with the highly efficient, plate-fin core - wherein finned chambers provide increased surface area, allowing superior heat transfer with minimum pressure drop - and you have a truly effective heat-exchange system.

This system is ideal for late-model, electronic overdrive transmissions in which ensuring proper cooling and pressure maintenance is of the utmost importance.


13950 Derale Atomic-Cool Remote Transmission Cooler with Installation Kit

Item # D13950

Installation Details D13950 Installation instructions

This Product Fits The Following Vehicles

Customer Satisfaction Score:

Customer Reviews

Derale Atomic-Cool Remote Transmission Cooler Kit w/ Fan, -6 AN Inlets - Class V - D13950

Average Customer Rating:  4.5 out of 5 stars   (4 Customer Reviews)

12-3/4" Wide x 9-3/8" tall x 4-5/16" deep, remote cooler assembly features a high-efficiency, plate-and-fin heat-exchanger core with 500-CFM tornado fan for maximum airflow, ensuring optimum performance for your automatic transmission.


The fan is nice, the brass compression barbed fittings did not work. They leaked from both threads. I paid for fancy with a quickness 2 day shipping, took 5 days. I’m just glad I wasn’t too much in a hurry to cool my dads transmission for his road trip.


Everything was included to install the cooler and instruction sheet is useful. Hardest issue is where to mount. No leaks so far. Should help trans temps while towing.


Great product, awesome price and very easy to install



See what our Experts say about this Derale Transmission Coolers

  • Which Derale Remote Transmission Cooler for 2010 Chevy Silverado 4.8 Liter D13950 or D13960
    Both the Derale transmission coolers you mentioned would work great installed on your 2010 Chevy Silverado with a 4.8 liter V8. The part # D13960 is the more efficient style of cooler as it has a stacked plate whereas the # D13950 is a plate and fin cooler which is still really effective but not quite as effective as the stacked plate. Now both of these are easily more powerful than you'd need to get the job done so if you go with either you'll have very cool transmission fluid that will...
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  • Transmission Cooler Recommendation for 2012 Chevy Silverado Towing 6,000 lb Boat
    A transmission cooler is a really great idea for your Dad's truck as the temperature range you mentioned is too hot to allow a transmission to survive very long. I'd recommend the Derale part # D13504 as it's a plate fin cooler which is one of the most efficient styles and is larger at 11" Wide x 12" tall x 7/8" deep so it's going to do a really great job reducing the temperatures to a much safer range. For an adapter to fit the truck's radiator to make the install of the cooler easy...
    view full answer...
  • High Capacity Trailer Hitch for a 2013 Chevy Silverado 1500 that Sits Tight to Rear Bumper
    The hitch opening of both Curt hitches you mentioned are going to sit right under the bumper of your 2013 Chevy Silverado. Check out the picture I attached that shows the # C15323 installed on a truck like yours. I attached an install video for you to check out as well. Be sure you don't exceed the towing capacity of your truck that is stated in the owners manual as well.
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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...
    view full answer...
  • Comparing Plate Fin Oil Cooler With Fan Remote Cooler For a 2011 Ford F-150 With 3.5L EcoBoost
    Typically a Derale Series 8000 Plate-Fin Transmission Cooler # D13503 is all you are going to need to help keep your transmission cool when towing. A cooler with fan like the Derale Atomic-Cool Remote Transmission Cooler # D13950 is typically a better option if you are only towing in areas where you constantly deal with stop and go traffic. I would not worry about having braided lines as even the factory hoses on your 2011 Ford F-150 are not braided. You should also consider adding a...
    view full answer...
  • Compatibility of Derale # D13950 Atomic-Cool Remote Mount Transmission Cooler with 2012 Yukon XL.
    As long as you have the available space in the area where you want to install the cooler, you can certainly use the # D13950 Atomic Cool Transmission Cooler on your 2012 Yukon. Keeping the transmission cool when you're moving in stop-and-go traffic is exactly what this particular cooler is designed for. The # D13035 you already have is the recommended fitting. You'll want to install the cooler in the return line heading back to the transmission, whether that line's coming from the radiator...
    view full answer...
  • Where to Install the Derale Atomic-Cool Remote Transmission Cooler Kit # D13950 on a Truck
    What's great about a remote cooler with a fan like the Derale Atomic-Cool Remote Transmission Cooler Kit # D13950 that you referenced is that it can basically install wherever it will fit since the fan will provide all of the necessary airflow to cool the fluid. Here is what Derale says about mounting location for this cooler: The purpose of a remote mount cooler is to be able to mount the cooler away from the front of the vehicle therefore not blocking airflow to the radiator/condenser....
    view full answer...
  • Transmission Cooler Recommendation for a 2014 GMC Yukon XL With 6.2L Engine
    I confirmed with Derale the Atomic-Cool Remote Transmission Cooler Kit # D13950 is going to be your best option for your 2014 GMC Yukon XL with 6.2L engine. This cooler has a fan to help push more air through the cooler at low speeds.
    view full answer...
  • Transmission Cooler with Fan Recommendation for a 2003 Chevy Silverado
    When you install the Derale Atomic-Cool Remote Transmission Cooler Kit w/ Fan # D13950 that you referenced you can either replace your current cooler or you can install this one after the factory cooler so that you get the cooling power of both. The most common and recommended method would be to put this cooler down stream of your factory cooler so that is what I would recommend for you. All you would need is the cooler and the fitting part # D13035 and you would be good to go. The #...
    view full answer...
  • Will Derale Atomic Cool Remote Coolers # D13950 Block Air Flow to Radiator Significantly
    A transmission cooler mounted out in front of the radiator would impede the air flow in a small amount but what we've found is that at higher speeds like that there's enough air flowing through the coolers that the effect is very minimal and nearly all the time not noticeable.
    view full answer...
  • Stacked-Plate Transmission Cooler for 2018 GMC Acadia SLT with V6
    Transmission and oil coolers are not vehicle-specific; you can essentially install any one for which you have the space available to install it. When it comes to coolers bigger is better. And if you want the best cooling even at lower speeds, such as when driving in mountainous areas, you might consider a remote-mount fan-powered cooler like the Derale Atomic Cool # D13950, an efficient plate-fin type cooler that will lower your transmission temperature even at low speeds since it does...
    view full answer...
  • Do Inlet And Outlet Ports Need To Be Mounted In A Particular Direction On Derale Cooler, # D13950
    The ports on the Derale Atomic-Cool Remote Transmission Cooler Kit w/ Fan, # D13950, do not need to be mounted in any particular direction. The transmission cooler is not directional so having the inlet on the top or bottom does not matter. You will want to choose the inlet or outlet port location by what will make your installation easier. Since this cooler comes with a fan-mounted heat exchanger you can mount the exchanger wherever you want because the fan will provide optimum airflow.
    view full answer...
  • Where is the Best Place to Install a Remote Transmission Cooler on a 2017 Nissan Armada
    As far as functionality there isn't one place that is really better than another for the Derale Atomic-Cool Remote Transmission Cooler Kit # D13950 on a 2017 Nissan Armada. Basically anywhere there is space for it will be a good location. On modern vehicles space in the engine compartment can be at a premium though so you will want to check ahead of time prior to installing a cooler. This cooler is 12-3/4" wide x 9-3/8" tall x 4-5/16" deep overall. The width and height probably won't be...
    view full answer...
  • Remote Transmission Cooler and Mounting Accessories for a 2004 Chevy Suburban 5.3 Liter
    Using the GM-specific snap-in radiator adapter fitting # D13035 will make installing a transmission cooler such as # D12733 easier because with it you would not have to cut and flare any lines for installation. The core on this cooler has 6 AN fittings. This cooler does not come with a thermostat but one can be added using # D13021. You will also need a mounting kit such as # D13002, hose clamps such as # D13008, and hose # D13017. The other option is a remote cooler that comes with these...
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  • Transmission Cooler Recommendation for a 2005 Nissan Pathfinder 4X4 SE and 6K Trailer
    For a trailer weighing 6,000 pounds I recommend going with a stacked-plate cooler because they will be the most efficient and will provide the best cooling compared to the other cooler options. For a kit you can use # D13403. For the best cooling you can get a cooler that comes with its own fan like # D13950. This will provide the optimum cooling no matter where the unit is mounted. I have included a link to our FAQ article on transmission coolers for you.
    view full answer...
  • Recommendation for a Supplemental Transmission Cooler for a 2007 Ford F-150 with 5.4 Liter Engine
    Based on the information you have provided, which I greatly appreciate, a standard supplemental cooler should be sufficient for your needs. Ideally you want the transmission temperature to be no more than 200 degrees F. Mounting a larger cooler directly behind the grille (in front of everything else) such as # D13504 should get you to the ideal range. You will also want fitting # D13025 so you will not have to cut and flare any lines. A remote cooler with its own fan will provide the optimum...
    view full answer...
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  • Will the Derale Atomic-Cool Transmission Cooler Fit on a 2009 Silverado 1500 Z71 4WD
    The ideal operating temperature for transmission fluid should remain between 160 and 200 degrees. If your transmission fluid was reaching 195 degrees when towing your fifth wheel trailer, it would be a good idea to either upgrade your factory added cooler or add an additional transmission cooler because this temperature could increase if you are towing on in hot weather or through hills where the engine and transmission will be working harder than on flat ground. Installing a remote mount...
    view full answer...
  • Derale Remote Transmission Cooler Kit w/ Fan # D13950 Recommendation for a 2002 Chevy Silverado
    The Derale Atomic-Cool Remote Transmission Cooler Kit w/ Fan # D13950 that you referenced should work well for you. It will provide you with excellent airflow in traffic and would not impede airflow at highway speeds. This fan and cooler combination was designed to do exactly what you are trying to do so it would work very well for you. However, I would recommend you keep your factory cooler and run this cooler as a supplemental cooler. You would want to route the transmission fluid first...
    view full answer...
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  • Remote Transmission Cooler Recommendation for a 2001 Dodge Ram
    The Derale Atomic-Cool Remote Transmission Cooler Kit w/ Fan # D13950 would actually be perfect for what you are looking for. The fan will provide the cooler with the needed air flow to reduce the temperatures and the plate and fin construction of this cooler makes it very efficient. You would see a noticeable reduction in transmission fluid temps. You also would want to install this after the factory cooler to get maximum gains.
    view full answer...
  • Recommended Electric Fan For Transmission Cooler On 2007 GMC Yukon XL 5.3L
    We sure do! The correct fan will be dependent on the size of the transmission cooler installed on your 2007 GMC Yukon CL 5.3L. More than likely the Derale 8" Tornado Electric Fan - 500 CFM # D16508 would be close enough in size to work properly, and would give you the additional air flow you are wanting for the cooler. If you find your transmission cooler is less than 8" tall just let me know and I would be happy to recommend the correct fan for you. I included a video of the # D16508...
    view full answer...
  • Recommended Supplementary Transmission Cooler for 2004 Dodge Dakota
    Transmission fluid temperature can rise quickly when towing, especially in warmer weather and when towing on uphill grades which naturally mean slower speeds and reduced air flow to your Dakota's cooling system. Supplementary coolers are a wise addition to a towing vehicle, and so too is keeping your transmission fluid fresh as you have done. Standard passive coolers like Derale # D13503 (along with hose fitting kit # D13030) can install in front of your AC condenser to give you more heat-radiating...
    view full answer...
  • Can a Remote Transmission Cooler be Used in Place of a Factory Cooler on a 2005 Nissan Pathfinder
    Basically, an aftermarket transmission cooler is used as a supplemental system and not a primary unit. But, when a leak like what you are describing does happen, the options are to bypass the factory cooler and plug the radiator so it does not continue to leak, or replace the radiator. You could use the Derale Remote Cooler, # D13950, that you have selected. You would need to plug the transmission line inlet and outlet, so the OEM trans cooler could fill with fluid without leaking out....
    view full answer...
  • Does Derale Atomic-Cool Remote Transmission Cooler Kit Fit 2007 Dodge Ram 2500 with a 5.9 Cummins
    Yes, the Derale Atomic-Cool Remote Transmission Cooler Kit w/ Fan # D13950 is compatible with your 2007 Dodge Ram 2500 with a 5.9 Cummins diesel and 48RE transmission. We confirmed with Derale that your transmission style is compatible with this cooler.
    view full answer...
  • Reducing Transmission Heat When Towing with 2008 GMC Yukon Hybrid
    I checked the online owner's manual for the 2008 GMC Yukon hybrid and on page 4-22 it notes that the maximum loaded trailer weight this vehicle can tow is 6200-lbs (if 2WD) or 6000-lbs (if 4WD). If your unloaded trailer's dry weight is 6700-lbs then the vehicle may well be heating up from being overloaded. You might check your printed manual just in case it has different information about towing capacity. It is not possible to add towing capacity to a vehicle by installing aftermarket...
    view full answer...

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