Holley Billet Fuel Pressure Regulators


Holley
Holley Billet Fuel Pressure Regulators

Holley® HP™ and Dominator™ Billet Fuel Pressure Regulators are part of a complete line of fuel system product line. They are precision machined from 6061-T6 billet aluminum for strength and durability. They feature a black bright dip anodized body and a clear bright dip anodized top for corrosion resistance and good looks. Holley® Billet Fuel Pressure Regulators are available in a variety of configurations.

  • Demand and return style regulators available
  • CNC machined from 6061-T6 billet aluminum for strength
  • Black bright dip anodized body and a clear bright dip anodized top for corrosion resistance and good looks
  • All regulators feature a 1/8" NPT gauge port
  • Carbureted and EFI versions available
  • All regulators include a mounting bracket for easy installation



  • HP Series Regulators

    510-12-840
    Billet Adjustable Regulator
  • Carbureted Applications
  • Adjustable 4.5-9PSI
  • 3/8" NPT Ports
    More info on Holley 12-840

    Fits Applications
  • $81.99
    Ships

    510-12-841
    Billet Adjustable Regulator
  • Carbureted Applications
  • Bypass Style
  • Adjustable 4.5-9PSI
  • 3/8" NPT Ports
    More info on Holley 12-841

    Fits Applications
  • $91.99
    Ships

    510-12-842
    Billet Adjustable Regulator
  • Carbureted Applications
  • Bypass Style W/Idle Bleed
  • Adjustable 4.5-9PSI
  • 3/8" NPT Ports
    More info on Holley 12-842

    Fits Applications
  • $101.99
    Ships
    06/06/12

    510-12-843
    Billet Adjustable Regulator
  • Carbureted Applications
  • Adjustable 4.5-9PSI
  • (1) -10AN O-Ring Inlet, (2) -8AN O-Ring Outlets
    More info on Holley 12-843

    Fits Applications
  • $121.99
    Ships

    510-12-845
    Billet Adjustable Regulator
  • Carbureted Applications
  • Bypass Style
  • Adjustable 4.5-9PSI
  • (1) -8AN O-Ring Inlet, (1) -8AN O-Ring Outlets, (1) -6AN O-Ring Return
    More info on Holley 12-845

    Fits Applications
  • $145.99
    Ships

    510-12-846
    Billet Adjustable Regulator
  • EFI Applications
  • Bypass Style
  • Adjustable 40-70PSI
  • (1) -8AN O-Ring Inlet, (1) -8AN O-Ring Outlets, (1) -6AN O-Ring Return
    More info on Holley 12-846

    Fits Applications
  • $145.99
    Ships
    Dominator Series Regulators

    510-12-847
    Billet Adjustable Regulator
  • Carbureted Applications
  • Bypass Style
  • Adjustable 4.5-9PSI
  • (1) -10AN O-Ring Inlet, (1) -10AN O-Ring Outlets, (1) -8AN O-Ring Return
    More info on Holley 12-847

    Fits Applications
  • $151.99
    Ships

    510-12-848
    Billet Adjustable Regulator
  • EFI Applications
  • Bypass Style
  • Adjustable 40-70PSI
  • (1) -10AN O-Ring Inlet, (1) -10AN O-Ring Outlets, (1) -8AN O-Ring Return
    More info on Holley 12-848

    Fits Applications
  • $151.99
    Ships