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OPR Replacement Stock Exhaust Manifold - Driver Side (99-04 V6)

Market Price $88.49 You Save 13% ($11.54)
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$76.95

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  • Item 101993
  • MPN# 101993

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    Features & Details

    • Stock Replacement Exhaust Manifold
    • Cast Iron Construction
    • Natural Finish
    • Ford Motor Company Equivalent Part# XR3Z-9431-BC, XR3Z-9431-DC
    • For Left - Driver Side Only
    • Sold Individually
    • Fits 1999-2004 3.8L/3.9L V6 Mustangs
    Restoration or Repair. If you are restoring your V6 Mustang back to stock or just need to replace a cracked exhaust manifold then this high quality replacement is the perfect part for a maintenance repair or high end restoration.

    OEM Quality. Manufactured to the original factory specifications from cast iron this OPR replacement driver side exhaust manifold includes a gasket and two studs to provide a perfect fit for reliable maintenance-free operation.

    Application. This OPR replacement driver side cast iron manifold is designed to fit all 1999-2004 V6 Mustangs including the 3.8L and 3.9L engine versions.Ford Motor Company equivalent part# XR3Z-9431-BC, XR3Z-9431-DC

    Fitment: 1999 2000 2001 2002 2003 2004 Details

    What's in the Box
    • (1) Driver side exhaust manifold
    • (1) Manifold Gasket
    • (2) Studs
    Installation Info
    Tech Specs
    Header Specifications
    Header Type: Stock Manifold Finish : Natural
    Type Mid Pipe Required: Standard Fitment: 1999-2004 V6 Mustangs
    Will it fit my Mustang?

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    2 Questions / 2 Answers

    Ask a Question

    Is there warranty on these parts and how long is it ?

    JoseV

    • The OPR Replacement Stock Exhaust Manifold will carry a 30 day warranty.

      Rob D

    Helpful (0)

    This is exhaust manifold is described as being "maintenance free." Also its made of cast iron where I believe the stock manifold is aluminum. Its well known that the stock manifold is most likely to crack with the most likely source of the problem being the a/c compressor drip. Is this somehow guaranteed not to crack from the same a/c drip?

    Anonymous

    • Cast iron is the heaviest toughest metal made for cars, they do not crack under normal situations. I would recommend calling our experts for better assistance or further help getting the best product for you needs.

      AMwhitecobraadam

    Helpful (0)

    People Who Bought This Item Also Bought

    Customer Reviews (22) Write a Review

    Overall Rating 4.7

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$100-$250

    • Loudness / Volume 4 4
    • Exhaust Note 4.294117 4.3
    • Fit & Finish 4.421052 4.4
    • Bang For Your Buck 4.421052 4.4



    • 4/5

      December 01, 2017

      OEM replacement exhaust manifold

      I had a shop do the install. They did not tell me of any difficulties. They did say the part was a Dorman brand. I personally prefer a quiet car. If I wanted a low rumble exhaust, I would have bought a V8.

      oh4pony

      Year: 2004 Submodel: V6

      Helpful (3)

    • 5/5

      Installation Time: Shop Install

      November 20, 2017

      Review from OPR Replacement Stock Exhaust Manifold - Passenger Side (99-04 V6)

      2001 Mustang maintenance

      Seems to be great, mechanic installed it with no issues, car runs beautifully

      Jennifer

      Year: 2001 Submodel: V6

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      November 18, 2017

      Exhaust manifold

      Works great fixed the common exhaust manifold crack

      DanielH

      Year: 2000 Submodel: V6

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      October 03, 2017

      Driver Manifold

      Worked great and got strength back compared to the cracked manifold.

      EduardoC

      Year: 2000 Submodel: V6

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      August 02, 2017

      Review from OPR Replacement Stock Exhaust Manifold - Passenger Side (99-04 V6)

      Easy to install

      Just the part i needed easy to install no issues could come with extra prep parts but it worked out

      MichealC

      Year: 2002 Submodel: V6

      Helpful (1)

    • 5/5

      July 29, 2017

      Review from OPR Replacement Stock Exhaust Manifold - Passenger Side (99-04 V6)

      Satisfied

      This is just a temporary replacement in which I have not installed yet,I will be ordering the BBK shortly headers and when installed I will give my opinion.thanks

      Rudeboy

      Year: 2000 Submodel: V6

      Helpful (3)

    • 5/5

      Installation Time: Full Day

      July 26, 2017

      Review from OPR Replacement Stock Exhaust Manifold - Passenger Side (99-04 V6)

      Excellent Factory Replacement

      Fit perfectly and came with gaskets and 4 studs and nuts for center cat pipe. Took car to a SCCA track night and they held up great. At $99 a side they are a good deal.

      MustangMike2001

      Year: 2001 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      June 28, 2017

      Review from OPR Replacement Stock Exhaust Manifold - Passenger Side (99-04 V6)

      Manifold

      2002 stock replacement spot on no issues.Quality part would recommend upgrade to headers if I was not on a budget!

      PhilM

      Year: 2002 Submodel: V6

      Helpful (4)

    • 5/5

      Installation Time: Shop Install

      June 14, 2017

      Review from OPR Replacement Stock Exhaust Manifold - Passenger Side (99-04 V6)

      Exact part I needed.

      Worked great and fit perfect. Fixed the sound and loss of HP power. Thanks AM.

      SeanW

      Year: 2004 Submodel: V6

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      December 03, 2016

      Review from OPR Replacement Stock Exhaust Manifold - Passenger Side (99-04 V6)

      Excellent replacement part.

      I had already replaced the drivers side manifold with a AM supplied Dorman replacement manifold due to the ever so common cracking issue experienced with the stock manifolds and it works great. However, I now have decided to replace both manifolds (now that the original passenger side manifold has cracked) with a set of BBK shorty headers.

      Notav8

      Year: 2000 Submodel: V6

      Helpful (5)

    • 5/5

      Installation Time: Shop Install

      November 16, 2016

      Review from OPR Replacement Stock Exhaust Manifold - Passenger Side (99-04 V6)

      Nice factory replacement

      This part was a nice replacement for a stock cracked exhaust header that showed a small increase of hp

      Kb

      Year: 2004 Submodel: V6

      Helpful (4)

    • 5/5

      September 09, 2016

      Mustang acceries

      The manifold made a big difference it has a deeper sound and more power

      Farmer

      Year: 2002 Submodel: V6

      Helpful (4)

    • 5/5

      August 31, 2016

      So much better!

      I got this replacement manifold because my old one was cracked and ticking. It was making my car louder (not in a good way) and I was losing horsepower while driving. I switched it out with this replacement and I couldn't be happier! No more ticking just quiet power and I have regained all my HP while driving which feel so good! And it was easy to put on too so I could do it myself. Couldn't be happier!

      Joanie

      Year: 1999 Submodel: V6

      Helpful (6)

    • 5/5

      Installation Time: Afternoon

      May 17, 2016

      great product

      Makes the car sound and run great glad I changed my stock to this American muscle manifold

      tbill

      Year: 2002 Submodel: V6

      Helpful (4)

    • 4/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      March 14, 2016

      Rebuilding Mustang04

      My old manifold was cracked and skipping so i replaced it with you guys personal american muscle driver side manifold. After installing it, didn't exactly take the skipping all the way of out but u can feel it has more power and goes thur the gears pretty smooth. I'm still adding to it right now and the manifold was just a start after am done with it and you guys help with the parts were going to be ready to hit the streets.

      kembo

      Year: 2004 Submodel: V6

      Helpful (4)

    • 5/5

      Installation Time: Weekend

      November 20, 2015

      Stock replacement

      It sounds better, it fits perfect and most importantly i do feel my car jump a little faster. The tone in my exhaust got deeper. Pretty good to me.

      James

      Year: 2001 Submodel: V6 Elizabeth, NJ

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      June 25, 2015

      Review from OPR Replacement Stock Exhaust Manifold - Passenger Side (99-04 V6)

      Cheap and it works

      This part was cheaper than what the Repair shop or others quoted me and it went right in.

      ProjectJoel

      Year: 2001 Submodel: V6 Los Angeles, CA

      Helpful (5)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      January 17, 2015

      Review from OPR Replacement Stock Exhaust Manifold - Passenger Side (99-04 V6)

      The right part at the right price.

      When the exhaust flange let loose on my car I wasn't looking forward to that job. When my local shop gave me a price of over $400.00 just for the manifold I was glad that my first thought is always to check American Muscle. $99.99 for the same part can't be beat. Thanks again to the AM team for having the best prices and service around.

      Tjk179

      Year: 2002 Submodel: V6 Levittown, PA, USA

      Helpful (4)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      September 22, 2014

      Ticking

      My car used to make a ticking every time I started it up was really annoying. After replacing the exhaust manifold it purrs and the ticking is gone and my sanity is saved thanks for stocking replacement parts American muscle, it works great.

      Aaron30

      Year: 2002 Submodel: V6 Everett, WA

      Helpful (6)

    • 1/5

      July 23, 2014

      Review from OPR Replacement Stock Exhaust Manifold - Passenger Side (99-04 V6)

      Nope!

      NEVER GOT A CHANCE TO INSTALL. Ist set I got had a bad crimp in the first cylinder tube and the driver side had one of the block flanges was off. Sent them back and reordered. Second set was even worse than the first. Comes direct from Ford so American Muscle has no control over quality. Ended up upgrading to BBK Ceramic shorty headers. Worth the extra $$$.

      bigfiredawg

      Year: 2003 Submodel: V6 Gatesville, TX

      Helpful (3)

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