Is the 2010/11 ford 4.0 v6 compatible in my 2003 mercury mountaineer?

Asked by Mar 24, 2019 at 06:24 PM about the 2003 Ford Explorer

Question type: Maintenance & Repair

I found a 2010 4.0 with 90k that is
cheaper than the timing chain
replacement kit plus special timing
tools, gaskets, time, frustration,
blood, ect....... For my 2003 mercury
mountaineer, the block and heads
are what I'm inquiring about. Upon
opening my engine it doesn't look
like it well taking care of, plus
possible head gasket leak. Will the
2010 sealed long block be
compatible with my truck and

1 Answer


It may bolt up, but if the new engine has two cam chains, one in the back and one in the front, you're still looking at the same repair down the road. Then there may be PCM issues. Computer may be looking for values during operation which were changed in the 2010 model year. Check on the motorcraft web site for remaned engines for both year vehicles. If the part numbers are the same, you're good to go.

Your Answer:

CarGurus Experts

  • #1
  • #2
  • #3
    G A Arne
View All

Find great deals from top-rated dealers


Related Models For Sale

Used Ford Expedition
13 Great Deals out of 446 listings starting at $5,995
Used Ford F-150
276 Great Deals out of 12,375 listings starting at $4,096
Used Chevrolet Tahoe
27 Great Deals out of 793 listings starting at $6,871
Used Jeep Grand Cherokee
85 Great Deals out of 4,999 listings starting at $3,999
Used Dodge Durango
48 Great Deals out of 946 listings starting at $7,495
Used Toyota Highlander
55 Great Deals out of 1,375 listings starting at $4,907
Used Ford Escape
216 Great Deals out of 6,603 listings starting at $1,588
Used Toyota 4Runner
37 Great Deals out of 1,001 listings starting at $4,999
Used Honda Pilot
56 Great Deals out of 1,787 listings starting at $4,444
Used GMC Yukon
21 Great Deals out of 895 listings starting at $4,395
Used Ford Explorer Sport Trac
54 listings starting at $2,995
Used Nissan Pathfinder
53 Great Deals out of 1,497 listings starting at $2,995

Used Cars for Sale

2020 Ford Explorer For Sale
3 Great Deals out of 1,297 listings starting at $31,475
2019 Ford Explorer For Sale
6 Great Deals out of 137 listings starting at $34,995
2018 Ford Explorer For Sale
12 Great Deals out of 147 listings starting at $27,997
2017 Ford Explorer For Sale
22 Great Deals out of 346 listings starting at $12,999
2016 Ford Explorer For Sale
10 Great Deals out of 181 listings starting at $10,490

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.