Motor swap???

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Feb 4, 2015 | 11:14 AM

andresr23

Thread Starter

Newbie

Joined: Oct 2014

Posts: 16

Likes: 0

From: BROWNSVILLE, TEXAS

Year: 1999

Model: Cherokee

Engine: 4.0

Motor swap???

I have a 99xj 4x4 but my motor needs to be replaced....Which 4.0 motor will be a direct bolt fit...

Feb 4, 2015 | 01:49 PM

Fred/N0AZZ

CF Veteran

Joined: Jul 2013

Posts: 7,554

Likes: 17

From: Monett, MO.

Year: 1999

Model: Cherokee

Engine: 4.0

The 99 is an separate engine all to itself for the most part up to the first half or so of the year.

Feb 4, 2015 | 04:41 PM

Kalali

Senior Member

Joined: Apr 2012

Posts: 578

Likes: 4

From: Ocean, New Jersey

Year: 2000

Model: Cherokee

Engine: 4.0

Quote:

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.

Feb 4, 2015 | 04:46 PM

STUD IN THE MUD

Member

Joined: Dec 2014

Posts: 227

Likes: 0

From: South Florida

Year: 2001

Model: Cherokee

Engine: 4.0 L

Diesel Swap!

Feb 4, 2015 | 07:22 PM

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

Likes: 1,578

From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

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)