Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

Replacing radiator - do I need a separate transmission oil cooler?

Thread Tools
 
Search this Thread
 
Old 09-30-2019 | 07:52 AM
  #1  
Cameron58's Avatar
Thread Starter
Member
 
Joined: Jul 2011
Posts: 115
Likes: 4
Model: Cherokee
Default Replacing radiator - do I need a separate transmission oil cooler?

99 Jeep Cherokee Sport, 4.0

I'm going to install this radiator
RADIATOR RADIATOR
.

I drive mostly in town, stop and go traffic. I never tow anything.

Is there a transmission oil cooler built into this radiator? If not, should I add an external one? Would it be ok to install the radiator "as is" and add a transmission cooler later, perhaps in six months? Thanks.
Old 09-30-2019 | 08:16 AM
  #2  
caged's Avatar
CF Veteran
 
Joined: Nov 2008
Posts: 7,874
Likes: 98
From: Northern Ontario, Canada
Year: 1990, 1999, 2000
Model: Cherokee
Engine: 4.0
Default

yes, that radiator is set up for auto, with trans cooler lines. that's the brass fittings on the left tank. if it were for a standard shift jeep, those brass lines would be removed and capped.

you can install a trans cooler later, if you think you need more trans cooling. if you're running larger tires or towing, it could be beneficial adding one. especially if you do both.
Old 09-30-2019 | 01:48 PM
  #3  
arto_wa's Avatar
Junior Member
 
Joined: Jul 2017
Posts: 87
Likes: 5
From: S.W. WA State
Year: 1989 & 1990
Model: Cherokee (XJ)
Engine: 4.0
Default

I would look for same model Cherokee with a factory towing package option in U-Pull salvage yard for the external, or additional AT oil cooling parts you will need.
Should be easy to install and look original.
Old 09-30-2019 | 05:20 PM
  #4  
BruceB's Avatar
Senior Member
Premium Member
 
Joined: Jan 2014
Posts: 937
Likes: 291
From: Eustis, Florida
Year: 1996
Model: Cherokee (XJ)
Engine: 4.0
Default

You may want to install a transmission temperature gauge if you are concerned with not over heating your trans,
Old 10-01-2019 | 08:15 AM
  #5  
caged's Avatar
CF Veteran
 
Joined: Nov 2008
Posts: 7,874
Likes: 98
From: Northern Ontario, Canada
Year: 1990, 1999, 2000
Model: Cherokee
Engine: 4.0
Default

B&M makes a great external trans cooler, use that in connection with the stock one in the radiator. hell, i think i have two externals, along with the stock radiator. heat kills our AW4 transmissions.
Old 10-01-2019 | 08:35 AM
  #6  
boxburn's Avatar
CF Veteran
 
Joined: Oct 2018
Posts: 1,577
Likes: 279
From: United Kingdom
Year: 1995 RHD
Model: Cherokee (XJ)
Engine: 4.0l
Default

Originally Posted by Cameron58
99 Jeep Cherokee Sport, 4.0

I'm going to install this radiator RADIATOR .

I drive mostly in town, stop and go traffic. I never tow anything.

Is there a transmission oil cooler built into this radiator? If not, should I add an external one? Would it be ok to install the radiator "as is" and add a transmission cooler later, perhaps in six months? Thanks.
Yes it has the cooler built in, the 2 connections below the left water hose are for that purpose. One of those cooler lines can be a pain to remove so you may want to look into how to remove it before starting the job.

When I asked about an additional oil cooler, I was advised that my daily driving and infrequent light towing would not be worth adding an additional cooler.

Personally the only time that I think it'd be worth it in normal driving conditions is if you have a lot of hills putting the torque converter to work.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
NOTNSUV
Modified XJ Cherokee Tech
0
11-26-2012 06:25 PM
Kenn
Modified XJ Cherokee Tech
22
05-11-2012 08:08 AM
95Cherokee
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
2
01-29-2012 04:09 PM
gandhi0011
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
11-19-2011 10:05 AM
jeremy175
Modified XJ Cherokee Tech
12
08-08-2011 01:39 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: Replacing radiator - do I need a separate transmission oil cooler?



All times are GMT -5. The time now is 12:37 PM.