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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$176.25
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

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.

Part Type

Fuel Pressure Regulator By-Pass Style 6psi

Data: v4.2 - Upd: 2026-10-14 11:14:46

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
12-881
Product Attributes - Part Type
Fuel Pressure Regulators
Product Attributes - Product Line
Holley Carburetor Bypass Style Fuel Pressure Regulators
Product Attributes - UPC
090127741283
Product Attributes - Regulator Pressure (psi)
4.5-9
Product Attributes - Regulator Style
Return
Product Attributes - Regulator Location
Inline
Product Attributes - Boost/Vacuum Reference Port
Yes
Product Attributes - Boost/Vacuum Rise Ratio
1:1
Product Attributes - Gauge Port
Yes
Product Attributes - Inlet Quantity
1
Product Attributes - Regulator Inlet Size
3/8 in. NPT
Product Attributes - Inlet Attachment
Female threads
Product Attributes - Outlet Quantity
1
Product Attributes - Regulator Outlet Size
3/8 in. NPT
Product Attributes - Outlet Attachment
Female threads
Product Attributes - Return Fitting Size
3/8 in. NPT
Product Attributes - Return Attachment
Female threads
Product Attributes - Fittings Included
No
Product Attributes - Regulator Material
Aluminum
Product Attributes - Regulator Color
Chrome
Product Attributes - Rebuildable
Yes
Product Attributes - Mounting Bracket Included
Yes
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Gauge port is 1/8 in. NPT. Pressure is preset at 6 psi from the manufacturer.

Reference Information

Brand Name/s Holley
StreetFX SKU hly12-881
SFX Item ID 4784323
Supplier Item Code 4784323
Manufacturer SKU 12-881
Manufacturer UPC 90127741283
Alternative References HOL12-881

Compatibility

Application Data
  • UniversalYes
    Fuel TypeGAS
    Regulator UsageCarburetor

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