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Motor swap???

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Old Feb 4, 2015 | 11:14 AM
  #1  
andresr23's Avatar
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Joined: Oct 2014
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From: BROWNSVILLE, TEXAS
Year: 1999
Model: Cherokee
Engine: 4.0
Default Motor swap???

I have a 99xj 4x4 but my motor needs to be replaced....Which 4.0 motor will be a direct bolt fit...
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Old Feb 4, 2015 | 01:49 PM
  #2  
Fred/N0AZZ's Avatar
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Joined: Jul 2013
Posts: 7,554
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From: Monett, MO.
Year: 1999
Model: Cherokee
Engine: 4.0
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The 99 is an separate engine all to itself for the most part up to the first half or so of the year.
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Old Feb 4, 2015 | 04:41 PM
  #3  
Kalali's Avatar
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Joined: Apr 2012
Posts: 578
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From: Ocean, New Jersey
Year: 2000
Model: Cherokee
Engine: 4.0
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Originally Posted by Fred/N0AZZ
The 99 is an separate engine all to itself for the most part up to the first half or so of the year.
What's so unique about the '99 engine? I would have thought a '97 or '98 also be a direct fit.
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Old Feb 4, 2015 | 04:46 PM
  #4  
STUD IN THE MUD's Avatar
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Joined: Dec 2014
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From: South Florida
Year: 2001
Model: Cherokee
Engine: 4.0 L
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Diesel Swap!
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Old Feb 4, 2015 | 07:22 PM
  #5  
cruiser54's Avatar
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Joined: Aug 2011
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Default

Let's get snapped back into reality here:

XJ Cherokee and ZJ Grand Cherokee 4.0L engine blocks interchange.

2000+ TJ Wrangler and WJ Grand Cherokee 4.0L engine blocks interchange.

XJ/ZJ blocks and 2000+ TJ/WJ blocks do not interchange without significant modifications. (1991 to 1995 YJ and 1997-1999 4.0L TJ Wrangler blocks will interchange in XJ/ZJ and visa-versa).

TJ/WJ 4.0L Engine blocks underwent clean sheet design changes effective in the 1999 WJ Grand and 2000 TJ Wrangler. These blocks are not interchangeable with XJ/ZJ engine blocks. The reason is motor mount bolt holes and belt driven accessory mounting bolt holes are in different locations, or not present at all, TJ/WJ vs. XJ/ZJ.


XJ: "Regular" (not Grand) Cherokees 84-01
ZJ: Grand Cherokee 93-98 (Gen1)
WJ: Grand Cherokee 99-04 (Gen2)
YJ: Wrangler 87-95 (Gen1)
TJ: Wrangler 97-06 (Gen2)
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