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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

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Ship to: Ashburn - 20149
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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

    MPN# 101993

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    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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    Questions & Answers (2)

    2 Top Rated Questions

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

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

    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?

    • 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.

    Helpful (0)
    Post Your Question

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    Customer Reviews (26) Write a Review

    Overall Rating 4.6

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$100-$250

    • Loudness / Volume 3.571429 3.6
    • Exhaust Note 4.095238 4.1
    • Fit & Finish 4.434783 4.4
    • Bang For Your Buck 4.347826 4.3



    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      January 26, 2019

      OEM Fit

      Fits perfect, better build than original OEM Headers

      EllisH

      Year: 2000 Submodel: V6

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      January 12, 2019

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

      Fixed

      Exact bolt on, not to hard of instal recommend helping hand

      EllisH

      Year: 2000 Submodel: V6

      Helpful (1)

    • 1/5

      Installation Time: Afternoon

      November 24, 2018

      It was missing a piece

      I ordered it and it only came with the exhaust manifold and not the gasket

      AlejandroA

      Year: 2000 Submodel: V6

      Helpful (1)

    • 5/5

      November 18, 2018

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

      Exhaust inside car

      Great value and no more fumes inside car. It took 2 hrs for each side.

      RoyJ

      Year: 2002 Submodel: V6

      Helpful (1)

    • 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 (7)

    • 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 (6)

    • 5/5

      Installation Time: Afternoon

      November 18, 2017

      Exhaust manifold

      Works great fixed the common exhaust manifold crack

      DanielH

      Year: 2000 Submodel: V6

      Helpful (7)

    • 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 (7)

    • 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 (4)

    • 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 (6)

    • 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 (5)

    • 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 (7)

    • 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 (7)

    • 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 (8)

    • 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 (7)

    • 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 (7)

    • 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 (10)

    • 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 (7)

    • 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 (13)

    • 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 (6)

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