Transmission Cooler Install - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 23 Old 04-02-2010, 12:29 PM Thread Starter
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Transmission Cooler Install

Here's another auxiliary cooler install. I followed PhilD's writeup with a couple of subtle changes.

I got this Hayden Imperial Maxi-Kool XL cooler from Advance Auto along with the hose barb kit, extra clamps and another three feet of hose.



Notice this is the 243012 it's pretty big at 11 x 11 3/8 x 3/4 thick (the only one they had in stock).



I drilled and tapped two holes in the cross bar for L-brackets.



Set it in place in the center with just enough room to clear the hood lock. I shot everything with a light coat of flat black grill paint to make it disappear. The Hayden cooler comes in a gloss black finish.



There is an existing plastic tab on both sides that lined up perfectly. I bent the upper brackets in the vice from some larger L-brackets I had laying around.


........My other hobbies include: Older cars and trucks; Spending money on unfinished projects, and continuing to not finish them...

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For my money, the most notable part of this thread is all the fallout from bsack's fortune cookie factory explosion.
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post #2 of 23 Old 04-02-2010, 12:30 PM Thread Starter
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Next I routed the hoses as you see. I cut out an oval hole in that shield on the right and installed a heater core firewall grommet I scavenged from a 2002 Toyota Tacoma:grin:.



Hoses connected to the upper line. from existing cooler to bottom of new cooler, from top of new cooler to transmission. It helps to remove the coolant overflow when routing the lines. Just unclip the overflow hose from the shroud and lift straight up and back toward the engine. There is plenty of hose to set it out of the way without disconnecting anything.



There has been some confusion lately about which line is the return. I confirmed the top one is the return line (at least on my 2008 JK Unlimited) by starting the Jeep cold, idling in drive for ten seconds and checking for the coolest line per the Hayden instructions.

........My other hobbies include: Older cars and trucks; Spending money on unfinished projects, and continuing to not finish them...

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For my money, the most notable part of this thread is all the fallout from bsack's fortune cookie factory explosion.
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post #3 of 23 Old 04-02-2010, 12:39 PM
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Looks good and yeah I used the same line you did.


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post #4 of 23 Old 04-02-2010, 06:07 PM
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Can someone tell me if this is right? Or are my auxillary lines mixed up? I am a little confused where the new lines connect in.

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post #5 of 23 Old 04-02-2010, 07:15 PM
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Originally Posted by jason0341 View Post
Can someone tell me if this is right? Or are my auxillary lines mixed up? I am a little confused where the new lines connect in.

looks correct to me


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post #6 of 23 Old 04-06-2010, 02:38 PM
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Nice install, looks very neat and tidy
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post #7 of 23 Old 04-06-2010, 08:39 PM
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Looks pro.
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post #8 of 23 Old 04-16-2010, 09:42 PM
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Nice write up. My next project.

08 2Door Red Rubicon. Rock Krawler 5.5 Longarm Coilover, Polly rear Coilovers. AEV hood & wheels, 37"KM2s, JE Reel 1350 shafts, 5.38 Yukon gears, Superior axles, Shrockworks stubby, Fab Fours rear, sPod, Rebel Offroad brakes, Warn winch and lots more.

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post #9 of 23 Old 04-23-2010, 10:26 AM Thread Starter
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Thanks guys, I seriously owe it to the others before mine. I've had PhilD and KerryP's write-ups bookmarked forever. Just before the install I printed Phil's and put it in the box with the cooler.

........My other hobbies include: Older cars and trucks; Spending money on unfinished projects, and continuing to not finish them...

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Quote:
Originally Posted by ExWrench View Post
For my money, the most notable part of this thread is all the fallout from bsack's fortune cookie factory explosion.
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post #10 of 23 Old 07-17-2010, 03:58 PM
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I did this mod today using the same parts. It was simple, quick and effective! I ended up fabricating some brackets using a steel landscape retainer... that took longer than the actual mod itself...lol. Thanks, man!
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post #11 of 23 Old 07-31-2010, 11:44 AM
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I just picked up the parts from Oreilly. When I looked things over the only angst appears to be that I'll have to pull the Powerplant off to remove the grille. That'll probably take longer than the cooler installation.

OP, can I assume the hose barb splices needed for the factory lines are 3/8"? Hope so that's what I got!
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post #12 of 23 Old 07-31-2010, 11:47 AM Thread Starter
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Originally Posted by SoK66 View Post
I just picked up the parts from Oreilly. When I looked things over the only angst appears to be that I'll have to pull the Powerplant off to remove the grille. That'll probably take longer than the cooler installation.

OP, can I assume the hose barb splices needed for the factory lines are 3/8"? Hope so that's what I got!
Yep 3/8 it is.

........My other hobbies include: Older cars and trucks; Spending money on unfinished projects, and continuing to not finish them...

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Quote:
Originally Posted by ExWrench View Post
For my money, the most notable part of this thread is all the fallout from bsack's fortune cookie factory explosion.
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post #13 of 23 Old 07-31-2010, 04:11 PM
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Thanks. FWIW, I found out from the instructions that Hayden makes an install adapter kit P# 392 for this. Checking it out online it is just two 3/8" brass inline splices.
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post #14 of 23 Old 08-01-2010, 01:30 AM Thread Starter
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Quote:
Originally Posted by SoK66 View Post
Thanks. FWIW, I found out from the instructions that Hayden makes an install adapter kit P# 392 for this. Checking it out online it is just two 3/8" brass inline splices.
Yeah that's it, same ones I got and they were hanging on the rack next to the trans cooler. They were zinc plated steel FWIW.

The one thing I did find odd (and rather annoying) is there was a precut length of hose by hayden there also. The package just said cooler hose. When I got ready to install I realized everything was 3/8 and it was 5/16 Luckily I hadn't already cut the stock line. So it just took a quick trip to Autozone to finish up.

........My other hobbies include: Older cars and trucks; Spending money on unfinished projects, and continuing to not finish them...

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Quote:
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For my money, the most notable part of this thread is all the fallout from bsack's fortune cookie factory explosion.
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post #15 of 23 Old 02-05-2011, 10:17 AM
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I'm installing a cooler today. I read through all of the search results but there seems to be conflicting info as too which line is the return line.

Top or bottom?

I want mine to flow from the tranny, to the factory cooler in the rad, to the aux cooler, and back to the tranny.

Let me know which line.

Thanks
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post #16 of 23 Old 02-05-2011, 10:49 AM Thread Starter
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Quote:
Originally Posted by xjtrailrider View Post
I'm installing a cooler today. I read through all of the search results but there seems to be conflicting info as too which line is the return line.

Top or bottom?

I want mine to flow from the tranny, to the factory cooler in the rad, to the aux cooler, and back to the tranny.

Let me know which line.

Thanks
pm sent...VVVV

Quote:
Originally Posted by gold knight View Post
....
There has been some confusion lately about which line is the return. I confirmed the top one is the return line (at least on my 2008 JK Unlimited) by starting the Jeep cold, idling in drive for ten seconds and checking for the coolest line per the Hayden instructions.

........My other hobbies include: Older cars and trucks; Spending money on unfinished projects, and continuing to not finish them...

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Quote:
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For my money, the most notable part of this thread is all the fallout from bsack's fortune cookie factory explosion.
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post #17 of 23 Old 02-05-2011, 11:01 AM
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Is it possible or necessary to put a cooler on a manual transmission?
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post #18 of 23 Old 02-05-2011, 02:03 PM
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pm sent...VVVV
Thank You!!!

Quote:
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Is it possible or necessary to put a cooler on a manual transmission?
Not needed. You could put one on your power steering if you just have to have one
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post #19 of 23 Old 02-05-2011, 04:18 PM
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Originally Posted by xjtrailrider View Post

Not needed. You could put one on your power steering if you just have to have one
Thanks, I think I'll be alright, no need to add unnecessary modifications to the never ending jeep to do list.
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post #20 of 23 Old 03-06-2011, 04:08 PM
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Did mine today. Write up here:
https://www.jkowners.com/forum/showpo...postcount=3469

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post #21 of 23 Old 10-20-2012, 10:48 AM
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Quote:
Originally Posted by jason0341 View Post
Can someone tell me if this is right? Or are my auxillary lines mixed up? I am a little confused where the new lines connect in.

Could someone help me with direction of flow. I know to cut the top line.

The fluid needs to enter at the bottom of the aux cooler and exit thru the top. Is this diagram correct for that flow?

Thanks
Dom

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post #22 of 23 Old 10-20-2012, 11:28 AM
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Very nice writeup and a job well done--

Mines different--I haven't honored TSB30, for the "Hot Oil" CPU reflash, cause I don't want my engine shutting down, at random heats--

I installed my aux coolers (2) and completely cut the stock (warmer) outta the circuit--

My auto temp never gets over 200 f--even towing up hills, off-road-



JIMBO


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post #23 of 23 Old 10-20-2012, 05:12 PM
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Quote:
Originally Posted by RGJK View Post
Could someone help me with direction of flow. I know to cut the top line.

The fluid needs to enter at the bottom of the aux cooler and exit thru the top. Is this diagram correct for that flow?

Thanks
Dom
This diagram is correct.

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