Transmission Cooler Parts List Thread

[JRoyPDX]

I had someone in the FB group ask for part numbers and info on doing an aftermarket oil cooler so they could just click links and order the parts. I wanted to put the information in a place where it was easier to find (Forums > FB) so here we go.

First, the cooler...

Now, on my truck I run a large cooler mounted under the bed with a fan from Derale part #15900, its this one:
https://www.summitracing.com/parts/der-15900



Before this I ran something a little more basic mounted in the grille. Most of you will probably do it this way. Something like this B&M Super Cooler would work good:
https://www.summitracing.com/parts/bmm-70266



The B&M cooler has 1/2" NPT ports so you'll need some adapters. These will do:
https://www.summitracing.com/parts/sum-220649b

Now for the adapters in the transmission itself. These are super common and easy to find. They are 1/4 NPSM to -6 AN fittings, found here:
https://www.summitracing.com/parts/rus-640520



At this point, you have fittings for the transmission. You also have a cooler and if needed the fittings in that as well. Mounting it I am going to leave up to you as this is more of a parts list that you should have in order to do the job. The next thing you'll need is the parts to build the hoses.

Now, I like to put a break in the hose just a few inches after they meet the transmission. I like to do this because it makes removal and installation much easier because with the transmission in place getting to the fittings on the transmission is kind of a bitch. You can do this two ways. If you don't plan on removing the transmission very often, you can use a basic male to male AN union fitting. This give you a place to disconnect that is very easy to reach. That's what I did, and it looks like this:



The next way that this can be done is with a dry break coupler. These are a quick-disconnect fitting that seals when disconnected so no fluid is lost. They're super awesome, but spendy. Here's a link to those:

http://www.radiumauto.com/Dry-Break-Couplers-P1003.aspx



These you would just get with -6 AN male fittings in the ends and they'd directly replace the union fittings shown in my picture. That also means it'd be easy to switch later on. For now let's focus on the part numbers for the union fittings, the hose, and the fittings you'll need to build the hoses.

First the hose. Summit sells a 20ft length that should be plenty if you mount your cooler on the passenger side in the grille, or under the bed like mine:
https://www.summitracing.com/parts/sum-230620



Next you'll need hose ends. You can of course get these in 90 degree, straight, 45 degree, 120 degree and so on. You can lay out your parts and choose what hose ends you want to use. you'll need a total of 8 hose ends as you're essentially building 4 hoses (two short ones out of the transmission, then your main hoses to the cooler). Here are links to straight ones and 90 degree ones and I'll let you figure out any alternatives:
https://www.summitracing.com/parts/sum-220690b



https://www.summitracing.com/parts/sum-220687b



Now, the union fittings:
https://www.summitracing.com/parts/vpe-10232



As an alternative you can also use a union with a 1/8" NPT female tee opening in it. I use one of these on the pump output (top port on transmission) to attach my sending unit for my transmission temperature gauge. I bought that on a different site where you could probably buy most of this stuff as well and they ship free:
https://www.anhosefittings.com/an-ma...nsor-port.html

[JRoyPDX]

That is just about it for parts that you need to do this job. Now, I can say that assembling AN hoses can be a big pain in the ass, but if you've heard any of those cliche sayings about having the right tools for the job you'll know that there is a way to make this easier and here we go with that. One of the hardest parts is getting the hose end collar onto the braided line. Koul makes a tool that makes this super easy. Seriously, if you're going to assemble AN hoses buy these. Trust me.
https://www.summitracing.com/parts/kts-6



The next one you could get away without, but if easier assembly and keeping the hose ends pretty are important to you please get these:
https://www.jegs.com/i/JEGS/555/80544/10002/-1



Last piece, very important if you want to keep those ends pretty, get AN wrenches. Get adjustable, get an assortment or whatever. Just get them. To assemble hose ends you need 1 size bigger than what you're assembling. So if you're building -6 hoses, you need a -8 wrench to assemble them (two of them if you don't get the vise jaws). You'll still need the -6 wrench to tighten hoses. I recommend two of every size you're going to use or adjustable AN wrenches. They're made from anodized aluminum so that they can't chew up your fittings.

No link this time, just a picture. If you type "an wrenches" into a search on summit, you'll get the results you want.