Derale Transmission Coolers - D13402
13" Wide x 6-7/16" tall x 2" deep, super-efficient heat exchanger improves the performance and increases the lifespan of your vehicle's transmission. Includes -6 AN aluminum fittings and hose-barb adapters.
Features:
- Prolongs life of transmission
- Improves overall performance
- Prevents heat-related failures
- Most efficient cooling system with the large surface area of the stacked plate design and turbulator technology
- Furnace-brazed aluminum construction for great heat dissipation
- Comes with built-in mounting brackets for easy installation
- Includes mounting kit, OEM spec hose with stainless steel clamps, Insta-dapt radiator adapter and brass hose-barb fittings
Specs:
- Inlet size: -6 AN
- Overall dimensions: 13" wide x 6-7/16" tall x 2" deep
- Distance between inlets: 10"
- Mounting dimensions: 4-7/8" tall x 12-1/4" 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.
Stacked-plate heat exchangers have long been considered the most effective type of oil or transmission cooler, primarily because of their increased surface area. Allowing fluid to spread out over this larger surface area decreases the time required for heat transfer to take place. As a result, plate coolers typically manage to cool a greater volume of fluid faster than tube-and-fin, or even plate-and-fin, varieties.

13402 Derale Stacked Plate Transmission Heat Exchanger with Installation Kit
Ask the Experts about this Derale Transmission Coolers
Do you have a question about this Transmission Coolers?
- How Does Fluid Flow Through the Derale Stacked-Plate Transmission Cooler Kit, # D13402
- I spoke with my contact at Derale about the Stacked-Plate Transmission Cooler Kit, # D13402. He stated that the plates are hollow so essentially, each plate has 1 big hole. Inside each plate there are heat dissipating fins. There are also fins between each plate. Fluid flows into one side and down each internal fin and hollow plate in succession until pressure pushes the fluid across the cooler to the other side and out through the outlet tube. So it is essentially in, down, across, out.
The
view full answer...
- Can the Derale Stacked-Plate Transmission Cooler Kit Be Mounted in Any Direction or Orientation
- The inlet and outlet on transmission coolers can be oriented in any direction you like and because the cooler is a flow through device you can use either port as the inlet or outlet, whichever makes the installation easier and uses the least amount of hose. The one thing you want to be sure of, is that the cooler is mounted so that most air flows through it, usually in the same orientation as your radiator.
The best installation location is as far forward as possible in front of the radiator,
view full answer... 
- Should a Transmission Cooler Be Used in Very Cold Climates on a 2012 Buick Enclave
- The common thought on transmission fluid is that it can not be kept cool enough. With that being said, if you are in an area that sees very cold winters your best bet will be to let your car run for a few minutes to not only warm the motor up but also the transmission fluid.
As long as you run the fluid from your factory cooler to the Derale Cooler # D13402 the engine coolant will act to warm up the transmission fluid as it runs through your radiator which will begin to warm up with the engin
view full answer...