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Hello all. I am seeking some general thoughts and information on creating a hood mounted transmission cooler. Probably using a cooler as large as one from a 2019 5500 (about 8 inches wide, 20 long and an inch thick) ram with a couple of fans. Has anyone seen this done? If so any input good, bad or otherwise would be appreciated and where to find pictures or videos.

P.s. I did search the forums and found a lot of useful info on coolers in general but they are always either underneath or in front of the radiator.
 

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Seems like the engine heat radiating onto the cooler would kind of defeat the purpose no? Plus there really isnt good airflow there.

Some guys mount them underneath opposite side of the exhaust if you want to avoid the radiator.
 

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A few thoughts.

#1: you don't need to use a cooler that large, especially if you use a plate and fin design (which is much more efficient than a tube type cooler). Even a relatively small supplemental cooler will give very good results when used in combination with the stock in-radiator cooler. For example, here is the Hayden 676 (11"x6" core size) plate and fin unit:



This cooler is rated for a vehicle with GVWR of up to 20,000 pounds. In other words, even this small unit is overkill for your application.

#2: mounting your supplemental cooler behind the (top of) the grille in front of the A/C condenser is the recommended location, for many reasons. It will get lots of natural air flow, plus the radiator fan will help draw air through it when you are not moving. It will also be somewhat protected from debris, which is also good.

#3: if for some reason you still insist on not mounting the cooler behind the grille, there are ones made which have integrated fans.



These you can mount anywhere--such as tucked up underneath the Jeep--and the fan will run constantly to ensure adequate cooling. You'll probably need to get creative making brackets to mount it, and you'll definitely need to figure out wiring in the electrical connections. This method is less ideal than the above, but it has proven to be effective.

FYI
 
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