OE TRANSMISSION FLUID COOLER (HOW TO)

You know I may be overcomplicating this effort. But I'm having a hell of a time finding a clear exploded view of how to install my OE Transmission Cooler.

I picked this up new and unused from a fellow member a couple of years ago. And supposedly it is a complete kit with all hoses, bolts, etc. necessary to convert a non-tow package Taco to one with the Trans oil Cooler.

Does anyone know where there is a drawing actually showing what goes where? bolts, brackets splice connectors etc... Goes where? And are there different offerings in the OE 2nd gens?

 

Do you have any pics of the cooler? Toyota never sold a "kit" to add in the OEM cooler.

 

Yeah, you are correct.
It was either a factory installed. Or you didn’t get it.

Here is about as good as a diagram you are going to get from Toyota.
I don’t know if it will help, but here it is.

 

It is all of the OE parts ordered together to make a kit. The fact that it is not a kit forsay did not occur to me, or I would have clarified. The guy I got it all from. I guess had ordered everything individually from a dealership. Maybe to convert or restore his Taco with original or OE parts. They all were in actual Toyota dealer parts bags, each part with its part number, etc. even the needed bolts. The guy really hooked me up price-wise. I had my local dealership quote the same to make sure I had everything needed. And I was like $900 +/- to equal all I had picked up from him for like $50.00, best memory serves.

 

With the diagrams above and the link below.
You should be able to piece it together.

The important part is the supply and return ports on the transmission.
They are labeled in the link below.

https://www.tacomaworld.com/threads...l-toyotas-write-up-with-many-pictures.526283/

 

2012 came with trans cooler with both tubes below:

2005+ has cooler with one tube above and the other below.

 

And while you are at it OP. If you have the OEM cooler with both tubes below it gives you enough slack to move the cooler up ~ 2-2.5 inches to get it in free air flow vs behind the blocked grill stock. This really helped with my trans temps

https://www.tacomaworld.com/threads/towing-transmission-cooler-mod-relocation.801368/#post-28721876

 

That was indeed a bargain. Looking a the cooler unit alone its $920 MSRP CDN$ but online you can get it for ONLY $651.

That's an insane price. If I didn't already have it since i have the towing pkg already I would never go the OEM route. For less than $200 you can do way better in the aftermarket and get a cooler, thermostat and filter.

You should already have most of the plumbing since there will already lines going from transmission to the "cooler" in the radiator.

 

It's not that bad of a job, if you have the whole kit including the brackets, the major thing is figuring out where the brackets for the lines go. The bolt holes for ones that hold the front of the first section of hard line are in a really hard to see spot.

I would find a truck that has them and crawl under it and take pics of the brackets, where they mount, and how they're oriented. I would do it for you but I replaced my factory cooler and lines with a custom deal.

If you live where there is salt, after getting everything installed and leak tested, I would HIGHLY recommend you spray the trans case elbow fittings and all of the hard line with something like Amsoil HDMP, Cosmoline, or other similar tenacious treatment (not FluidFilm/Woolwax/oil coat) and touch it up every year or two.

The extra $20 in product and 10/mins a year are well worth it.

The hard lines are notorious for pinhole rusting if the truck ever sees salt, the nuts on the hard lines corrode in place, and the elbows are expensive and a pain in the ass to replace.

Pic of the carnage when I replaced mine, those elbows will take a 17mm wrench when you install them: