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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


  • 14 Products

    HP Series Regulators

    Holley 12-840 - Holley Billet Fuel Pressure Regulators
    510-12-840
    Billet Adjustable Regulator
  • Carbureted Applications
  • Adjustable 4.5-9PSI
  • 3/8" NPT Ports
  • FREE
    SHIPPING
    & HANDLING!
    $85.37
    Ships
    Holley 12-841 - Holley Billet Fuel Pressure Regulators
    510-12-841
    Billet Adjustable Regulator
  • Carbureted Applications
  • Bypass Style
  • Adjustable 4.5-9PSI
  • 3/8" NPT Ports
  • FREE
    SHIPPING
    & HANDLING!
    $95.42
    Ships
    Holley 12-842 - Holley Billet Fuel Pressure Regulators
    510-12-842
    Billet Adjustable Regulator
  • Carbureted Applications
  • Bypass Style W/Idle Bleed
  • Adjustable 4.5-9PSI
  • 3/8" NPT Ports
  • FREE
    SHIPPING
    & HANDLING!
    $109.95
    Order Today Ships 02/15/16
    Holley 12-843 - Holley Billet Fuel Pressure Regulators
    510-12-843
    Billet Adjustable Regulator
  • Carbureted Applications
  • Adjustable 4.5-9PSI
  • (1) -10AN O-Ring Inlet, (2) -8AN O-Ring Outlets
  • FREE
    SHIPPING
    & HANDLING!
    $127.95
    Ships
    Holley 12-845 - Holley Billet Fuel Pressure Regulators
    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
  • FREE
    SHIPPING
    & HANDLING!
    $153.95
    Order Today Ships 03/02/16
    Holley 12-846 - Holley Billet Fuel Pressure Regulators
    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
  • FREE
    SHIPPING
    & HANDLING!
    $153.95
    Ships

    Dominator Series Regulators

    Holley 12-847 - Holley Billet Fuel Pressure 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
  • FREE
    SHIPPING
    & HANDLING!
    $163.95
    Ships
    Holley 12-848 - Holley Billet Fuel Pressure Regulators
    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
  • FREE
    SHIPPING
    & HANDLING!
    $163.95
    Ships

    Billet Regulator Rebuild Kits

    Holley 12-822 - Holley Billet Fuel Pressure Regulators
    510-12-822
    Regulator Rebuild Kit
  • For 510-12-840
  • $22.50
    Order Today Ships 02/16/16
    Holley 12-823 - Holley Billet Fuel Pressure Regulators
    510-12-823
    Regulator Rebuild Kit
  • For 510-12-841 and 510-12-842
  • $22.50
    Order Today Ships 02/16/16
    Holley 12-824 - Holley Billet Fuel Pressure Regulators
    510-12-824
    Regulator Rebuild Kit
  • For 510-12-843
  • $22.50
    Order Today Ships 02/16/16
    Holley 12-825 - Holley Billet Fuel Pressure Regulators
    510-12-825
    Regulator Rebuild Kit
  • For 510-12-845 and 510-12-847
  • $31.72
    Order Today Ships 02/16/16
    Holley 12-826 - Holley Billet Fuel Pressure Regulators
    510-12-826
    Regulator Rebuild Kit
  • For 510-12-846
  • $31.72
    Order Today Ships 02/16/16
    Holley 12-827 - Holley Billet Fuel Pressure Regulators
    510-12-827
    Regulator Rebuild Kit
  • For 510-12-840
  • $31.72
    Order Today Ships 02/16/16

    14 Products