Heavy-Duty Flexplate
InfoVehicle Info Needed
HAYSPART NUMBER: 490-12-055

Heavy-Duty Flexplate

$22595
ShippingShips on Sep 14, 2026
Lowest PriceLowest Price Guarantee

Ford
  • External Balance
  • Heavy-Duty Flexplate
  • Ford 332-428FE/429-460
  • External Balance
  • 164-Tooth
  • SFI 29.1 Approved
  • Zinc Dichromate Finish

    HAYS / MR GASKET 12-055 Features:

    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 today's 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 flexibility in adapting to multiple transmission style torque converters. All Hays heavy-duty flexplates are zinc-dichromate plated to resist corrosion and are SFI certified under specification 29.1.
    • All applications for flexplates are SFI 29.1 Certified
    • Available in Externally and Internally Balanced options
    • Feature Zinc Dichromate Plated finish for superior corrosion resistance and good looks
    • Heavy Duty design utilized thicker than stock steel plate enabling to withstand the stress of high-stall converters and high-RPM engines
    • SFI-Certified Flexplates for Racing

      Hay's heavy-duty Flexplates are constructed from thicker-than-stock grade 80 steel and engineered to withstand the force of high-stall torque converters and high-RPM performance and competition engines. This zinc-dichromate plated 29.1 or 29.3 SFI-certified flexplates are supplied with a ring gear that is securely welded in place and feature dual bolt patterns for flexibility in adapting to multiple transmission-style torque converters.

    Part TypeFlexplate
    Product LineHays Steel SFI Certified Flexplates
    BrandHAYS
    Package Height0.8
    Package Width14.1
    Package Length14.2
    Weight8.51 PG
    Part CategoryPerformance Parts
    Ring Gear Tooth Quantity164-tooth
    Flexplate MaterialSteel
    Rear Main Seal Style2-piece
    QuantitySold individually
    Part FitmentSemi Universal
    Safety RatingSFI 29.1
    Engine BalanceExternal
    Vendor Part Number12-055
    Package Qty1
    Package TypeEA
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