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Holley Fuel Pressure Regulators


Holley
Holley Fuel Pressure Regulators

Product images may differ from actual product appearance.

Standard Pressure Regulator
Recommended for low-pressure applications that require steady flow. Factory adjusted to 2.7 psi with a 1-4 psi range. Accepts 3/8" NPT fittings.

Max Pressure Regulator
Adjusts from 4.5 to 9 psi. Also good as a high-pressure bypass. 2 regulators are recommended for dual 4-barrel applications. Accepts 3/8" NPT fittings.

Big-Port Regulator
Die-cast aluminum regulator adjusts from 4.5 to 9 psi. Least restrictive, highest flowing production regulator with one 1/2" NPT inlet port and two 1/2" NPT outlet ports. Mounting hardware included.



Standard Pressure Regulator
Holley 12-804 - Holley Fuel Pressure Regulators
510-12-804

Standard Pressure Regulator
  • Chrome Finish
  • For use with gasoline
    Installation Instructions for Holley 12-804
  • $27.99
    Max Pressure Regulator
    Holley 12-803 - Holley Fuel Pressure Regulators
    510-12-803

    Max Pressure Regulator
  • Chrome Finish
  • For use with gasoline
  • $27.99
    Big-Port Regulator
    Holley 12-704 - Holley Fuel Pressure Regulators
    510-12-704

    Big-Port Regulator
  • Chrome/Zinc Finish
  • Compatible with gasoline and alcohol
    Installation Instructions for Holley 12-704
  • $84.99
    Regulator Diaphragm Repair Kit
    Holley 12-807 - Holley Fuel Pressure Regulators
    510-12-807

    Regulator Diaphragm Repair Kit
  • For regulators 510-12-803 and 510-12-804
    Installation Instructions for Holley 12-807
  • $6.99

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