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Carbureted Bypass Fuel Pressure Regulator

Street/Strip Carbureted Applications Two Port Adjustable from 4.5 to 9 PSI

Part # 12-803BP Be the first to write a review
Estimated Ship Date: 04/07/2023
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$108.95
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5

Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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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. The Holley 12-803BP fuel pressure regulator features 3/8" NPT in/out ports and a 3/8" NPT return port.

Features:

  • Adjustable fuel regulation from 4-1/2 to 9 psi
  • Preset to 7psi
  • 3/8” NPT ports (1 in, 1 out, 1 bypass or return)
  • Used in systems with a return line back to the fuel tank
  • Quieter fuel pump operation
  • Designed only for carburetor use
  • Polished finish
  • Mounting bracket included

About Holley

Holley Performance Products has been the undisputed leader in fuel systems for over 100 years. Holley's products include carburetors, fuel pumps, fuel injection, intake manifolds, and much more. From start to finish, Holley has the parts to make your dream a reality.

Brand Holley
ColorShiny
Emission Code5
Fuel SystemGasoline
Fuel TypeGasoline
Inlet Size3/8 inch NPT
MaterialAluminum
Outlet Size3/8 inch NPT
Pressure Range4.5-9 PSI
Product TypeFuel Pressure Regulator
Return Size3/8 inch NPT
StyleBypass
WarrantyLimited 90 Day
UPC090127605172
Part Number12-803BP
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
The 803BP is designed for use with an electric fuel pump with a return line in the system. If you are using a mechanical fuel pump, use the 12-803 regulator. The mounting holes in the regulator are not threaded. The screws included are self-tapping for use in installation.
Limited 90 Day: See Details
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    Some parts are not legal for use in California or other states with similar regulations.