Tranny cooler?
 

I've pulled a few times (no long distances..maybe 5 miles at a time...) my double trailer w/2 SeaDoos. Sometimes pull a single trailer w/one ski on it of course!

I have a '00 4Runner Sr5. How can I tell if it has the trans cooler and if not...should I install one for the little towing I do?

Thanks,
Mike

It has a cooler, just not a good one. Toyota uses the bottom section of the radiator for a tranny cooler.

Do a search for hayden 676 or hayden 677. Cheap and easy install.

I think they all came with a stock tranny cooler.

It doesn't hurt to just add another one.

I would and did, and I don't even have a trailer. You should have a factory ATF cooler in your radiator, but that's not enough IMHO. Heat kills auto trannies, the cooler it is the longer it lasts. Just putting a cooler thermostat in would help some since the ATF is cooled by the radiator.

Thanks for all the info.
I'll look into adding an additional one.

Mike

i got the TRD transmisson cooler, it easy to install and it just mounts to factory bolts, no zip ties. but of course it cost me alot.

Hayden 678 $55 bucks on ebay.Two day shipping.

Any thoughts on comparison, pros/cons between the TRD cooler and the Hayden cooler? the prospect of using the factory bolts, and knowing its a factory peice has its great things, but money is a downfall, what else?

I like these: http://www.importperformancetrans.com/coolers.shtml

BTW they can be found cheaper on e-bay too.

Try searching you will see it is the SAME cooler.

I bought a TruCool and have been very happy with it. Some good info here:

https://www.yotatech.com/forums/show...=tranny+cooler

Ed

I've read great things about the hayden cooler here, but the only thing I didn't was it has the plastic ziptie looking thingies that you can mount thru the radiator, but I didn't feel that it would be secure and just didn't like that either, so I got some 1/4 in. thick aluminum, cut some 3in strips and used that to mount the cooler to the metal piece in front of the radiator. Very secure now.

I agree, the Tru-cool comes with much better mounting hardware than the Hayden.

I used the zip ties.....no issues here as long as you use the foam isolators too.
I might have been nicer to hard mount it, but I didn't.

The 677 I got off ebay came with metal mounting tabs/strips as well as the plastic ties. I used the metal strips, a few bolts and some loctite, its not going anywhere.

The plastic ties got used a week later on my civic :)

Mike- Doesn't sound like you need one.....even if you get an extra cooler you wouldn't really know how effective it is ...unless you have a tranny temp gauge to reference. So maybe the first thing you should consider is a temp gauge and watch it while towing. Driving "blind" without would makes me nervous without a gauge.
I recently installed a temp gauge and have noticed that on the highway at 80 mph that the temp stabilizes at 170 in my 2001 Taco. This is very acceptable for auto trannys but I want COOLER....When the weather cools, I will add the Hayden cooler behind the grill and see the improvement it actually makes. I have not towed with it yet so I don't know if the mild load of 2 SeaDoos will change it much.

I think it was Transdude that said it on here,"it's never to late to add a cooler".

9 out of 10 times, the TRD items are re-badged/packaged parts. (TRD air filter/K&N; TRD shocks/Bilsteins; TRD springs/Eibach; etc.... )

Yep some people get TRD kits with hayden labled coolers.

Speaking of Transdude, notice what brand of cooler he recommends: http://www.importperformancetrans.com/coolers.shtml

Better than TRD/Hayden at cooling and less restriction/pressure drop for the ATF flow through the cooler, win-win.

What size of these is best suited for a 3rd gen 4runner?

I installed the 4454 one and it fit nicely...

As with any cooler, the larger the better, but anything 18,000 GVW and above should do the job.
The 14.5k GVW cooler is just a little too small IMHO.

i have the hayden 676, it was easy to install and alot cheaper than the TRD, just make sure you use transmission fluid line and not fuel line, the fuel line will soften and crack. i didn't feel mine came with enough line to do the whole thing, and tranny line is $$, but worth it, to do it right.

Thanks guys, I just ordered the 18,000. I also ordered their Valve Body upgrade to go with the URD kit I'm putting in next week along with a freshly factory rebuilt supercharger. Should be fun!

what about 2002 3.4 4x4 tacomas?? autmatic extracab. do they have a tranny cooler?

they use the radiator like all the others except the tundra with tow package, the hayden 676 will work, thats what i have on my 03 taco auto

This may help with the VB R&R:
http://members.cox.net/mgriese5/Level10.html

Good luck Sean

I just put in my Hayden T/C last night and found that it was beneficial to remove the bumper and not just the grill. There were a few sharp edges that my lines were resting against after I installed the cooler. It would have been difficult to wrap the lines to protect them with the bumper on. It's only 10 extra minutes or 5 if you have a helper, but it saves you from fumbling around blindly.:nerd: