ZJ Gas Tank into XJ
Thread Starter
Junior Member
Joined: Apr 2020
Posts: 77
Likes: 12
From: New York
Year: 2000
Model: Cherokee (XJ)
Engine: 4.0
I've heard the ZJ gas tank is a direct swap into the XJ. I've not been able to find anything about swapping a ZJ gas tank into an XJ though... The only thing I've seen is "Do a search...", but I've found nothing. The fuel pump model numbers are different which leads me to believe it's not a direct swap. Has anyone here done the swap before?
CF Veteran
Joined: Jun 2016
Posts: 2,138
Likes: 278
From: Santa Clarita California
Year: 2001
Model: Cherokee (XJ)
Engine: 4.0L
CF Veteran




Joined: May 2012
Posts: 7,965
Likes: 964
From: Lost in the wilds of Virginia
Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
Sounds like a lot of work for just a few gallons. Not looking like a good cost/benefit ratio.
Thread Starter
Junior Member
Joined: Apr 2020
Posts: 77
Likes: 12
From: New York
Year: 2000
Model: Cherokee (XJ)
Engine: 4.0
Thanks Tech. Exactly what I was looking for. Filling up every 4 days as opposed to every 3 days makes a difference. I assume they're the same, but can anyone confirm if the fuel pump harnesses are different with/without the overhead console?
Senior Member


Joined: Feb 2011
Posts: 664
Likes: 29
From: Arizona
Year: 1996
Model: Cherokee
Engine: 4.0
I like the idea. There was a guy that did the same on the stock xj tank getting the full 20 gallons. I like getting an extra 5 gallons on top of the 20. Every jy I go to here rests the weight of the vehicle on the gas tank ruining the skid and tank. I will have to look at other jy's.
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I like the idea. There was a guy that did the same on the stock xj tank getting the full 20 gallons. I like getting an extra 5 gallons on top of the 20. Every jy I go to here rests the weight of the vehicle on the gas tank ruining the skid and tank. I will have to look at other jy's.
I know this one boneyard that drains the tanks.
Not sure how but always assumed they just punched a hole in it.
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Joined: May 2012
Posts: 7,965
Likes: 964
From: Lost in the wilds of Virginia
Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
In my area, they won't take a vehicle unless there is already "a fist sized hole" in the gas tank.
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