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

Item 101993
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Market Price $88.49 You Save 13% ($11.54)
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$76.95

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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

    OPR

    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:StandardFitment:1999-2004 V6 Mustangs
    Will it fit my Mustang?

      Customer Photos

        Questions & Answers (3)

        3 Top Rated Questions

        Do these replacements lead to a deeper exhaust note?

        • These will not deepen the exhaust tone, they are a straight stock replacement.

        Helpful (0)

        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

          Customer Reviews (27) Write a Review

          Overall Rating 4.6

          out of 5 stars

          Installation Time:Full Day

          Installation Cost:$100-$250

          • Loudness / Volume 3.636364 3.6
          • Exhaust Note 4.136364 4.1
          • Fit & Finish 4.458333 4.5
          • Bang For Your Buck 4.375 4.4



          • 5/5

            Installation Time: Afternoon

            February 20, 2019

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

            no more tick sound

            took about an hour and a half to install with hand tools. thankfully didn't break any bolts. got rid of that awful tick sound. fit great

            Ryuu

            Year: 2001 Submodel: V6

            Helpful (4)

          • 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 (3)

          • 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 (3)

          • 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 (3)

          • 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 (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 (9)

          • 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 (8)

          • 5/5

            Installation Time: Afternoon

            November 18, 2017

            Exhaust manifold

            Works great fixed the common exhaust manifold crack

            DanielH

            Year: 2000 Submodel: V6

            Helpful (9)

          • 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 (9)

          • 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 (6)

          • 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 (8)

          • 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 (7)

          • 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 (9)

          • 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 (9)

          • 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 (10)

          • 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 (9)

          • 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 (9)

          • 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 (12)

          • 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 (9)

          • 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 (15)