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12-840 Billet Adjustable Regulator
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HOLLEYPART NUMBER: 510-12-840

12-840 Billet Adjustable Regulator

$15895
2 left in stock
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HP Series Regulators
    Billet Adjustable Regulator
  • Carbureted Applications
  • Adjustable 4.5-9 PSI
  • 3/8" NPT Ports

  • Used in systems where a return line is not needed
  • Use with electric or mechanical pumps
  • Adjustable from 4.5-9 PSI for precise fuel pressure adjustments
  • One inlet, two outlets

  • Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

    Precision-Built Fuel Pressure Regulators For EFI and Carburetors

    Holley Billet Fuel Pressure Regulators are available in a variety of configurations and engineered to provide smooth and stable fuel pressure delivery under any conditions from idle to full throttle. Each precision-machined, 6061-T6 billet aluminum regulator features an anodized body and top for corrosion resistance and durable performance.

Part TypeFuel Pressure Regulator
Product LineHolley Billet Fuel Pressure Regulators
BrandHOLLEY
Package Height2.7
Package Width3.65
Package Length3.85
Weight0.68 PG
Part CategoryPerformance Parts
Regulator FinishBlack/Clear anodized
Outlet Size3/8 NPT
Inlet Size3/8 NPT
Regulator MaterialBillet aluminum
Outlet QuantityTwo
QuantitySold individually
Boost/Vacuum Reference PortNo
RebuildableYes
Mounting Bracket IncludedYes
Gauge PortYes
Return Fitting Size3/8NPT
Regulator LocationInline
Fittings IncludedNo
Inlet QuantityOne
Pressure Range (Psi)4.5-9
Part FitmentUniversal
Regulator StyleNon-Return
Vendor Part Number12-840
Package Qty1
Package TypeEA
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