Automatic Transmission Cooler

boxboy · Aug 24, 2015

I need a new trans cooler whats everyone running these days? I was hoping for built in fan and built-in adjustable thermostat?

Todd1803 · Aug 24, 2015

This is what I used for the AW4 swap in my YJ after visiting with the Derale tech guys. I'm running it stand alone, with no in-radiator cooler.

http://www.amazon.com/Derale-13960-...sbs_263_1?ie=UTF8&refRID=0N66352VPYRD6TCV3W4V

crash2 · Aug 24, 2015

Any flat plate style will work perfect and most efficient IMO.

Here is an example scott.

http://www.summitracing.com/parts/bmm-70297/overview/

I run this setup on my dodge and I can easily control the trans temp pulling hard and fast.

PORTER · Aug 24, 2015

I have run both of these with great results, first is a lighter duty cooler, second is a more heavy duty. Really depends how much cooling you need. You can buy the second with a fan and brackets also but I was too lazy to look. Prices are pretty good thru amazon also.
http://www.amazon.com/gp/aw/d/B000C...Y165_QL70&keywords=derale+transmission+cooler

http://www.amazon.com/gp/aw/d/B004X...rds=derale+transmission+cooler+13300+with+fan

pokey · Aug 24, 2015

flexalite makes a great cooler with fan (made in USA) have one on my service van and it works great everyday:awesomework: They also support keeping our trails open :awesomework:

DHR Darren · Aug 24, 2015

I use the Derale with fan on our turbo cars and they are the hardest on fluid. We would log 265-290* trans temps while staging on the transbreak and 220-230* with the Derale.

boxboy · Aug 25, 2015

I am cooling a turbo 400 with stock stall like 1800 I think. I currently can wheel all day at Reiter with out a cooler but if I do any road running it gets hot fast.

I was thinking plate style as i think you can reduce the over all size and get better cooling?

crash2 · Aug 25, 2015

boxboy said:
I was thinking plate style as i think you can reduce the over all size and get better cooling?

Yes--the plate style offers the most surface area of any cooler. Why do ya think radiators are built like this :awesomework:

boxboy · Aug 25, 2015

tube and fin work as well just seems the plate and fin cool more in a smaller foot print.

crash2 · Aug 25, 2015

boxboy said:
tube and fin work as well just seems the plate and fin cool more in a smaller foot print.

Well imagine if that same tube/fin was used as a radiator...It would work but imagine how big it would be..

Not Jobless · Jan 9, 2016

I've been running a Derale plate cooler on my C4 down here in 120 degree heat...the tranny has never got above 180 in the pan. Run pretty much the same setup for power steering...