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Holley Carburetor Bypass Style Fuel Pressure Regulators 12-881 Regulators, Die-Cast By-Pass, Adjustable, 4.5-9 psi, Return Style, In-line, 3/8 in.-NPT Ports, 1/8 in.-NPT Gauge Ports, Aluminum, Each

SKU: HLY12-881

Fuel Pressure Regulators

Holley Carburetor Bypass Style Fuel Pressure Regulators 12-881 Regulators, Die-Cast By-Pass, Adjustable, 4.5-9 psi, Return Style, In-line, 3/8 in.-NPT Ports, 1/8 in.-NPT Gauge Ports, Aluminum, Each

SKU: HLY12-881

Fuel Pressure Regulators
A$180.85
IN STOCK! Est Ship 4-7 days. In stock at 2 locations (more than 10 available)

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Description

Fuel Pressure Regulator - Die Cast - 4-1/2 to 9 psi - In-Line - 3/8 in NPT Inlet - 3/8 in NPT Outlet - 3/8 in Return - 1/8 in NPT Gauge Port - Bypass - Aluminum - Chrome - Gas - Each


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 02:17:17

Data: v4.2 - Upd: 2026-11-09 16:36:27

Features

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Holley, Hilborn, Holley Efi, Retrobright, Terminator X
StreetFX SKU hly12-881
SFX Item ID 4784323
Accounting SKU hly-12-881
Manufacturer SKU 12-881
Manufacturer UPC 090127741283
Alternative References 12-881, HLY-12-881, HOL12-881

Fuel Pressure Regulators, Die-Cast By-Pass, Adjustable, 4.5-9 psi, Return Style, In-line, 3/8 in.-NPT Ports, 1/8 in.-NPT Gauge Ports, Aluminum, Each

Holley carburetor bypass style fuel pressure regulators are designed for systems that require a return line back to the tank. They're used for carbureted applications only, and are preset at 7 psi. The regulators are made of aluminum and feature a natural or black finish.

Product Attributes
BrandHolley
Manufacturer's Part Number12-881
Part TypeFuel Pressure Regulators
Product LineHolley Carburetor Bypass Style Fuel Pressure Regulators
UPC090127741283
Regulator Pressure (psi)4.5-9
Regulator StyleReturn
Regulator LocationInline
Boost/Vacuum Reference PortYes
Boost/Vacuum Rise Ratio1:1
Gauge PortYes
Inlet Quantity1
Regulator Inlet Size3/8 in. NPT
Inlet AttachmentFemale threads
Outlet Quantity1
Regulator Outlet Size3/8 in. NPT
Outlet AttachmentFemale threads
Return Fitting Size3/8 in. NPT
Return AttachmentFemale threads
Fittings IncludedNo
Regulator MaterialAluminum
Regulator ColorChrome
RebuildableYes
Mounting Bracket IncludedYes
RemanufacturedNo
QuantitySold individually.
NotesGauge port is 1/8 in. NPT. Pressure is preset at 6 psi from the manufacturer.

Compatibility

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