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Vehicle Info NeededHOLLEYPART NUMBER: 510-12-803
12-803 Carbureted Fuel Pressure Regulator
$5195
More than 10 available
Ships on Nov 02, 2026
Lowest Price GuaranteeCarbureted Fuel Pressure Regulators
- Carbureted Fuel Pressure Regulator
- For Use With Gasoline
- Inlet: (1) 3/8" NPT
- Outlet: (2) 3/8" NPT
- 4-1/2 to 9 psi
- Includes Mounting Bracket
- Cast Aluminum
- Chrome Finish
Holley 12-803 Carbureted Fuel Pressure Regulator Features:
- 3/8 in. NPT Ports
- .220 in. Restriction
- Incl. Mounting Bracket
- Low Pressure 1-4 PSI
- High Pressure 4.5-9 PSI
- Chrome Finish
- Not Alcohol Compatible
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Regulate Fuel System Pressure with Ease
Holley Die-Cast Fuel Pressure Regulators will precisely control the pressure from the fuel pump to the fuel distribution system. Each regulator is fully adjustable (where noted), comes pre-set (eliminating guesswork when installing), and is available in multiple options for EFI and carbureted applications.
Part TypeFuel Pressure Regulator
Product LineHolley Die Cast Fuel Pressure Regulators
BrandHOLLEY
Package Height2.7
Package Width3.5
Package Length4.0
Weight0.65 PG
Part CategoryPerformance Parts
Regulator FinishChrome plated
Outlet Size3/8 NPT
Regulator MaterialAluminum
Outlet QuantityTwo
QuantitySold individually
Boost/Vacuum Reference PortNo
RebuildableYes
Inlet AttachmentFemale Threads
Inlet Size (In.)3/8 NPT
Mounting Bracket IncludedYes
Gauge PortNo
Outlet AttachmentFemale Threads
Regulator LocationInline
Fittings IncludedNo
Inlet QuantityOne
Pressure Range (Psi)4.5-9
Part FitmentUniversal
Regulator StyleNon-Return
Vendor Part Number12-803
Package Qty1
Package TypeEA
No Questions
No Reviews
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EASY KITS
Some parts are not legal for use in California or other states with similar laws / regulations
