Transmission Cooler Recommendation and Installation Instructions for a 2007 Jeep JK 3.8 Liter
Published 05/11/2011
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Question:
Vehicle: Jeep JK 3,8l, AT, no AC plan to tow 2.000lbs travel trailer, would use locatio #1 ahead of radiator. Is this cooler the best option. How do I plumb the lines to the transmission? Is there a flow direction that should be considered? Hose routing any pre-cautions?,Which is the return line? Upper or lower line to the original cooler connection?
asked by: Karl
Expert Reply:
The Derale Series 8000 Plate-Fin Transmission Cooler Kit, item # D13501, is a Class II efficient transmission cooler and would definitely help the transmission on your JK, but since you are towing 2,000 pounds I would recommend a bit larger Class III cooler like the Derale Series 8000 Plate-Fin Transmission Cooler Kit, item # D13503.
You cannot cool transmission fluid too much, so the Class III cooler will provide better cooling when towing and will be good for the transmission around town also. You just need to make sure there is room for installation of the Class III Cooler in the # 1 location in front of the radiator. There should be plenty of room on your Jeep, but check to be sure.
You will plumb the transmission cooler inline on the transmission fluid return line. The Insta-Dapt Radiator Adapter, item # D13004, will install in the radiator port and then the rubber hose is clamped to the male fitting. the other end of that hose is attached to the trans cooler. Next, attach a second length of rubber hose to the other transmission cooler fitting, then, clamp the other end to the transmission return line.
Product Page this Question was Asked From
Derale Series 8000 Plate-Fin Transmission Cooler Kit w/Barb Inlets - Class II - Efficient
- Transmission Coolers
- Plate-Fin Cooler
- Small SUV
- Standard Mount
- 11W x 5-3/4T x 7/8D Inch
- With 11/32 Inch Hose Barb Inlets
- Derale
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on Transmission Coolers
Karl
5/11/2011
Vehicle: Jeep JK 3,8l, AT, no AC plan to tow 2.000lbs travel trailer, would use locatio #1 ahead of radiator. Is this cooler the best option. How do I plumb the lines to the transmission? Is there a flow direction that should be considered? Hose routing any pre-cautions?,Which is the return line? Upper or lower line to the original cooler connection?