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How Does the Transmission Cooler Portion of D15902 Route to Vehicle


Part # D15902 I was interested in the above oil cooler. I watched the video installation on a Toyota 4Runner. I was confused about connection from the thermostatic unit to the vehicles radiator. The video did not indicate once the original tranny lines are removed and the hoses from the thermostatic unit are connected to the bottom of the radiator where do the original hoses get connect to? The 4runner does not have a canister type of oil filter, therefore, I can only guess that the vidoe shows it connect to the power steering unit for the second connection. Unless I am wrong, why did the video show the connection to the power sterring? I would appreciate a clarification of both questions. Do you have a an installation instruction for the D15902 unit? Thanks


Helpful Expert Reply:

In the install video for the Combination cooler part # D15902 that you referenced it is used as a transmission and power steering fluid cooler so it does not show it getting attached to the oil filter system.

The return line of the factory transmission cooler (radiator port) gets run to the inlet of the Derale cooler and then the outlet of the Derale gets run to the return line of the factory system that runs back to the transmission.

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helpful expert reply by:
Jameson C

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