Hays® 12-071 Steel SFI Certified Flexplate
Hays® 12-071 Steel SFI Certified Flexplate


Hays® (92-23) Mustang Steel SFI Certified 164 Tooth Flexplate

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    Compatible: (4.6L/5.0L/5.4L/5.8L)

    1992 - 2004 Ford Mustang

    2011 - 2023 Ford Mustang


    This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.


    Hays heavy-duty flexplates for high performance and competition engines are constructed of a thicker than stock steel plate, enabling them to withstand the stress of high-stall torque converters and high-RPM engines. While factory stock plates tend to crack around the crankshaft hub when punished under high torque and RPM conditions, the thicker Hays flexplate handles the force. These H.D. flexplates are supplied with a ring gear that is securely welded in place and feature dual bolt patterns for use with either a Powerglide or Turbo-Hydromatic torque converter. All Hays heavy-duty flexplates are zinc-dichromate plated to resist corrosion and are SFI certified under specification 29.1.
    • Securely welded ring gear and zinc dichromate plated to resist rust and corrosion
    • Meets SFI specification 29.1 for racing
    • For 8-bolt crankshaft
    • Constructed of thicker than stock steel plate to withstand the stress of high stall speed converters and high RPM enginge



    # of Teeth 164
    Application Ford Modular V8 engines
    Brand Hays
    Center Bore (Register Diameter) 1.750"
    Emission Code 5
    Engine Balance Internal
    Material Steel
    Product Type Flexplate
    SFI Certification 29.1
    Warranty 90 Day
    Part Number 12-071