Hi all. I searched all threads with "Transmission Cooler" in title. Only 15 of them. They do not answer my questions.

I am getting a tranny cooler to experiment with how my 123 pulls a small camping trailer. (Dont try to talk me out of it )

I at first wanted to observe the temps of transmission with and without the cooler to see how effective it was. However, I realized the best time to install the cooler would be when changing the fluid and installing the temp sensor. And definitely before I go pickup the trailer. I am taking everyones word for it that a Tranny cooler will extend transmission life. Science will have to wait until I can bypass the tranny cooler.

Questions I have are :

1) what performance cooler I should buy . The best I can that I can fit under the hood?

2) Does anyone have Pics of an installation on a W123. Or where is best place to mount it?

Here are a whole bunch to choose from.
http://www.jegs.com/webapp/wcs/stores/servlet/CategoryDisplay?catalogId=10002&storeId=10001&categoryId=10535&parentCategoryId=10529&langId=-1

And here are B&M ones I'm looking at.

http://www.jegs.com/webapp/wcs/stores/servlet/CategoryDisplay?catalogId=10002&storeId=10001&categoryId=17689&parentCategoryId=10535&langId=-1

The 11x6x1.5 inch one seems like it would fit under the hood easy enough. Its rated at 24,000 GVW .


Thanks for any help and I will post story and installation pics here. (I promise ).

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What Would Rudolph Do?
1975 300D, 1975 240D, 1985 300SD, 1997 300D, 2005 E320 , 2006 Toyota Prius