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Holley 12-866
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Holley Regulator Rebuild Kit

510-12-866

made in usa
Ships directly from the manufacturer
Save $10 off $199, $45 off $499, $100 off $999. Promo Code: FALLFUN exclusions apply

$32.71
Holley Regulator Rebuild Kit $32.71
Out of stock
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Regulator Rebuild Kit
  • For 2/4-Port Ultra Dominator Fuel Pressure Regulators
  • Low Pressure 4 To 9 PSI
  • Holley 12-866 Details

    Billet Regulator Rebuild Kits

  • For #510-12-852, #510-12-865.

  • Specifications:

    Manufacturer's Part Number:
    12-866
    Shipping Weight:
    0.13
    Package Height:
    3.6
    Package Depth:
    2.7
    Package Width:
    3.8

    Holley Billet Fuel Pressure Regulators are part of a complete line of fuel system products. 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. Holley Billet Fuel Pressure Regulators are available in a variety of configurations.

    HP & Dominator Series
  • 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.

    Ultra HP & VR Series
  • Can support 3,000+ HP engine applications that require high flow fuel volumes.
  • EFI regulators are adjustable from 40-100 PSI base pressure.
  • Carbureted regulators are adjustable from 4 to 9 PSI base pressure.
  • Compatible with gasoline, methanol, and E85* (*requires draining and flushing after each race).
  • 1/8" NPT gauge port.
  • Designed for use with the Holley Ultra HP and Ultra Dominator Brushless in-line fuel pumps.
  • Can be referenced on a 1:1 ratio - includes a barb fitting and a -4 AN fitting for reference connection.
  • 2 port regulators feature a 10 AN O-ring inlet/outlet and return.
  • 4 port regulators feature a 10 AN O-ring inlet and return with (4) 8 AN O-ring outlets.

  • Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.