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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 from a given needle and seat assembly can overload the needle and seat and may cause flooding or drivability problems. All Holley regulators are pre-set at the factory so there is no guesswork when first installing the regulator. The Holley 12-803 fuel pressure regulator features 3/8" NPT in/out ports.



- Adjustable fuel regulation from 4-1/2 to 9 psi

- .220" (7/32") restriction

- 3/8" NPT ports (1 in, 2 out)

- Chrome Finish

- Mounting bracket included

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Holley Performance Products
Holley Fuel Pressure Regulator
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