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OPR EGR Vacuum Modulator (98-04 V8; 01-04 V6)

Item 100989
AmericanMuscle no longer carries the OPR EGR Vacuum Modulator (98-04 V8; 01-04 V6). Please check out 2015-2022 Mustang Crate Engines and Blocks for an updated selection.
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    Product Information

    Features, Description, Reviews, Q&A, Specs & Installation


    • Exhaust Gas Recirculation Vacuum Modulator
    • Direct Fit Replacement
    • Ford Motor Company Equivalent Part# F63Z9J459AA
    • Sold Individually
    • Fits 1998 to 2004 V8 & 2001-2004 V6 Mustangs


    Improve Performance. Is your Mustang suffering from poor acceleration, rough idle or failing emissions testing? Then you may need to replace your old stock EGR Vacuum Modulator with a brand new replacement from OPR.

    Reduce Emissions. The EGR (Exhaust Gas Recirculation) system recirculates a portion of your exhaust gases back into your engines combustion chamber to more efficiently and completely burn the fuel to reduce your Mustangs toxic emissions. In this system the EGR Vacuum Modulator uses exhaust backpressure to precisely control (or modulate) the strength of the vacuum sent to the EGR valve.

    OEM Quality. Made to the original factory specifications from OEM quality materials, this OPR EGR Vacuum Modulator is a perfect fit replacement that provides reliable maintenance-free operation.

    Application. This OPR EGR Vacuum Modulator is a direct fit replacement for 1998 to 2004 4.6L V8 Mustangs, including the GT, Bullitt, Mach 1 and SVT Cobra models, as well as 2001-2004 3.8L and 3.9L V6 Mustangs.


    CA Residents: WARNING: Cancer and Reproductive Harm -

    Installation & What's in the Box

    Installation Info

    What's in the Box

    • (1) EGR Vacuum Modulator

    Tech Specs


    Customer Reviews (12)

      Questions & Answers

      10 More Questions

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