Derale Transmission Coolers - D12906
13" Wide x 7-1/2" tall x 3/4" deep, reliable, all-aluminum tube-and-fin cooler extends the life and improves overall functioning of your vehicle'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 small to mid-size trucks and SUVs
- Imported
Specs:
- Inlets: 11/32" hose barb
- Overall dimensions: 13" wide x 7-1/2" tall x 3/4" deep
- Core width: 10-1/8"
- Distance between inlets: 6-1/4"
- 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.

12906 Derale Dyno-Cool Aluminum Tube and Fin Cooler with Installation Kit
Replaces 41011
Customers Who Purchased This Transmission Coolers Also Bought...
Ask the Experts about this Derale Transmission Coolers
Do you have a question about this Transmission Coolers?
- Does the Derale Transmission Cooler Kit Come with What is Needed to Install on a 1997 Chevy Lumina
- The Derale Dyno-Cool Tube-Fin Transmission Cooler Kit, # D12906, comes with everything you will need to mount and install it on your 1997 Chevy Lumina. The system installs in line with your current transmission hoses.
I have included an FAQ article on Transmission Coolers below. There is a lot of helpful information, including the best places to mount the unit. I have also included a video showing installation of a transmission cooler. Installation will be similar on your vehicle.
view full answer...
- Transmission Cooler Recommendation for a 2005 Acura MDX Towing a 3,750 Pound Boat and Trailer
- The Class of transmission cooler you use will depend more on where you can mount it. The most efficient place is in front of the AC condenser. You could then use a Class I cooler, like # D12901.
If mounted behind the condenser, I would go with a Class II like # D12906. If mounted behind the radiator I would go with a Class III like # D13502. The problem is that the further away from the front of the vehicle a cooler is mounted, the less airflow it receives. The less airflow a coolers receive
view full answer...
- Where is the Best Location to Mount the Derale Dyno-Cool Tube-Fin Transmission Cooler Kit
- The Derale Dyno-Cool Tube-Fin Transmission Cooler Kit, part # D12906, should be mounted after the radiator. So it would be in line from the fluid return line, this is the recommended way to install part # D12906.
For mounting the unit, it is recommended that part # D12906 be mounted behind the grill and in front of the Air Conditioning Condenser Core, (see video link for reference).
You can mount part # D12906, between the condenser core and the radiator but it will cut down on the coolin
view full answer...
- Recommend A Transmission Cooler For 2011 Subaru Outback V6 Towing Over 2000 Pound Trailer
- The item you selected, the Derale Transmission Cooler, part # D12906 will work on your 2011 Subaru Outback as long as you have room to mount it on your vehicle. The ideal place to mount a transmission cooler for maximum cooling efficiency is behind the grill of your 2011 Subaru Outback but in front of the radiator.
You will want to measure at the front of your vehicle to make sure there is room to mount part # D12906 as it measures 13 inches wide and 7-1/2 inches tall.
Another Transmission
view full answer...
- Can the Inlet/Outlet Fittings on Trans. Cooler Point Down on a 2006 Chevy Colorado
- It would not be required that you mount a Derale Dyno-Cool Tube-Fin Transmission Cooler Kit, part # D12906, in any particular direction, the line pressure from the transmission will push the fluid through the cooler regardless of if its mounted horizontally, vertically or any direction in between.
I would recommend you choose a location based on receiving maximizing airflow through the cooler, regardless of what direction it points.
I would also recommend you get a Derale Snap-In Radiato
view full answer...
- Recommendation For Transmission Cooler On A 1995 Nissan Parthfinder 4X4
- To determine what kind of transmission cooler you will need depends on how much weight you will be towing and where you will be towing.
If you will be towing a light load, less than 2,000 pounds, in flat driving conditions, your 1995 Nissan Pathfinder 4x4 will do fine with a Class I rated cooler. If you will be towing more than a 2,000 pound load through some hills, I would use a Class II or Class III cooler.
I would recommend the Derale Series 8000 Plate-Fin Transmission Cooler, part # D
view full answer...
- Which Derale Radiator Adapter Fitting Kit for a 2000 Ford Taurus Wagon
- I spoke with my contact at Derale and the reason there are two different hose fitting recommendations is because there are two possible diameter hoses that are on the 2000 Ford Taurus Wagons.
To determine the correct fitting you will need to know the threaded diameter of the transmission fluid line fitting in your vehicles radiator.
If you need a 3/8 inch fitting you would need a Derale Radiator Adapter Fitting Kit, part # D13014. If you need a 1/2 inch fitting I would recommend a Derale R
view full answer...
- Could a Fairly Handy Person Install a Transmission Cooler on a 2001 Dodge Grand Caravan
- A fairly handy person could install a transmission cooler onto a vehicle pretty easily. I have installed a cooler on two of my cars without a problem and I consider myself fairly handy.
I attached an installation video of a transmission cooler being installed onto a vehicle to give you an idea of what it is like. Most vehicle will not require the removal of the front end like the vehicle in the video, so do not let that discourage you.
I also attached an FAQ article on transmission coolers
view full answer...
- Transmission and Power Steering Cooler Recommendations for a 2004 Acura MDX
- A transmission cooler would be a great idea for you. Especially considering the mileage on your vehicle, the length of your trips with the trailer, and since your vehicle manufacturer recommends one. I attached an FAQ on transmission coolers for you to check out also.
Basically, the cooler you keep the transmission fluid, the longer the life of your transmission will be. The same is true for your power steering pump. The Derale Dyna-Cool Tube-Fin Transmission Cooler # D12906 that you referenc
view full answer...
- Transmission Cooler Recommendation for a 1996 Nissan Pathfinder Towing a 1900 lb Trailer
- There really is not a down side to using a transmission cooler on a vehicle. It has been proven that transmission coolers will prolong the life of a transmission. Especially when the vehicle is towing a trailer. I would strongly recommend you install one since you will be pulling a 1,900 lb trailer with your 1995 Nissan Pathfinder. The power switch might enhance the shift points so that it will perform better while towing, but it will not prevent excess heat from building up in your transmission
view full answer...
- Installation of Derale Transmission Cooler # D12906 on a 2003 Acura MDX
- A transmission cooler will attach in-line with the transmission fluid return line on your 2003 Acura MDX. 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. Stop engine and remove keys
4. Identify the transmission fluid return line by feeling both lines. The coolest line is the return line.
You
view full answer...