Holley Fuel Pressure Regulator

Holley fuel pressure regulators are designed to precisely control the fuel pressure from the fuel pump to the carburetor. Too much fuel pressure for a given needle and seat assembly can overload the needle and seat and may cause flooding or drivability problems. Each Holley fuel pressure regulator is fully adjustable so regulating the fuel pressure to your engines needs is a simple task. All Holley regulators are pre-set at the factory so there is no guesswork when first installing the regulator.

If you have any questions about Holley Fuel Pressure Regulators for your vehicle reach out to one of our experienced representatives. We will be happy yo help you make a more informative decision.
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HOLLEY 12-704
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HOLLEY 12-704 Carbureted Fuel Pressure Regulator Street/Strip Carbureted Applications Two Port Adjustable from 4.5 to 9 PSI

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$193.67

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$168.41

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HOLLEY 12-707
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HOLLEY 12-707 Billet Carbureted Fuel Pressure Regulator Street/Strip Carbureted Applications Four Port Adjustable from 4.5 to

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$380.10

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$330.52

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HOLLEY 12-803
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HOLLEY 12-803 Carbureted Fuel Pressure Regulator Street/Strip Carbureted Applications Two Port Adjustable from 4.5 to 9 PSI

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$59.51

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$51.75

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In Stock - 100 New In Stock
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HOLLEY 12-803BP
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HOLLEY 12-803BP Carbureted ByPass Fuel Pressure Regulator Street/Strip Carbureted Applications Two Port Adjustable from 4.5 t

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$148.14

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$128.82

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In Stock - 40 New In Stock
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HOLLEY 12-804
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HOLLEY 12-804 Carbureted Fuel Pressure Regulator Street/Strip Carbureted Applications Two Port Adjustable from 1 to 4 PSI

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$59.51

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$51.75

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In Stock - 61 New In Stock
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HOLLEY 12-840
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HOLLEY 12-840 HP Billet Fuel Pressure Regulator Street/Strip Carbureted Applications Two Port Adjustable from 4.5 to 9 PSI

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$155.26

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$135.01

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In Stock - 4 New In Stock
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HOLLEY 12-841
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HOLLEY 12-841 HP Billet By-Pass Fuel Pressure Regulator Street/Strip Carbureted Applications Two Port Adjustable from 4.5 to

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$175.92

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$152.97

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HOLLEY 12-842
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HOLLEY 12-842 HP Billet By-Pass Fuel Pressure Regulator w/ Idle Bleed Street/Strip Carbureted Applications Two Port Adjustabl

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$189.24

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$164.56

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HOLLEY 12-843
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HOLLEY 12-843 HP Billet Fuel Pressure Regulator Street/Strip Carbureted Applications Two Port Adjustable from 4.5 to 9 PSI

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$230.58

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$200.50

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HOLLEY 12-845
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HOLLEY 12-845 HP Billet By-Pass Fuel Pressure Regulator Street/Strip Carbureted Applications Two Port Adjustable from 4.5 to

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$264.44

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$229.95

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In Stock - 5 New In Stock
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HOLLEY 12-846
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HOLLEY 12-846 HP Billet Fuel Pressure Regulator Street/Strip EFI Applications Two Port Adjustable from 40 to 70 PSI

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$264.44

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$229.95

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HOLLEY 12-847
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HOLLEY 12-847 Dominator Fuel Pressure Regulator Hot Street/Race Carbureted Applications Two Port Adjustable from 4.5 to 9 PSI

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$282.98

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$246.07

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HOLLEY 12-848
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HOLLEY 12-848 Dominator Fuel Pressure Regulator Hot Street/Race EFI Applications Two Port Adjustable from 40 to 70 PSI

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$282.98

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$246.07

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HOLLEY 12-879
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HOLLEY 12-879 HP Billet Fuel Pressure Regulator Carbureted/EFI Applications Two Port By-Pass Return Style Adjustable from 4 t

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$224.79

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$195.47

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In Stock - 7 New In Stock
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HOLLEY 12-880
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HOLLEY 12-880 HP Billet Fuel Pressure Regulator Carbureted/EFI Applications Two Port By-Pass Return Style Adjustable from 4 t

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$224.79

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$195.47

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In Stock - 13 New In Stock
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HOLLEY 12-881
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HOLLEY 12-881 Carbureted Fuel Pressure Regulator Street/Strip Carbureted Applications Three Port 6 PSI

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$88.95

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$77.35

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In Stock - 27 New In Stock
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HOLLEY 12-882
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HOLLEY 12-882 HP Billet Fuel Pressure Regulator Carbureted/EFI Applications Two Port By-Pass Return Style Adjustable from 4 t

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$108.80

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$94.61

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In Stock - 12 New In Stock
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HOLLEY 12-886
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HOLLEY 12-886 Die Cast Fuel Pressure Regulator Carbureted/EFI Applications Two Port By-Pass Return Style Adjustable from 15 t

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$108.80

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$94.61

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In Stock - 13 New In Stock
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HOLLEY 512-501
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HOLLEY 512-501 Stock Replacement Fuel Pressure Regulator Street/Strip EFI Applications Adjustable from 35 to 65 PSI

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$206.45

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$179.52

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In Stock - 2 New In Stock
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