Holley HP Billet Fuel Pressure Regulator # HO12-880
SKU: 89987502664

Holley HP Billet Fuel Pressure Regulator # HO12-880

Sale price$191.25 Regular price$212.50
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Description

Holley HP Billet Fuel Pressure Regulator # HO12-880Holley HP Billet Fuel Pressure Regulator # HO12 880 Fuel Pressure Regulators, HP Billet, Adjustable, 4 65 psi, Return Style, Inline, 6 AN Female O ring, Aluminum, Black, Clear Anodized, Each Regulator Pressure (psi): 4 65 Regulator Style: Return Regulator Location: Inline Boost Vacuum Reference Port: Yes Boost Vacuum Rise Ratio: 1: 1 Gauge Port: Yes Inlet Quantity: 1 Regulator Inlet Size: 6 AN Inlet Attachment: Female straight cut O ring Outlet

Holley HP Billet Fuel Pressure Regulator # HO12-880

Fuel Pressure Regulators, HP Billet, Adjustable, 4-65 psi, Return Style, Inline, -6 AN Female O-ring, Aluminum, Black, Clear Anodized, Each

Regulator Pressure (psi):

4-65

Regulator Style:

Return

Regulator Location:

Inline

Boost/Vacuum Reference Port:

Yes

Boost/Vacuum Rise Ratio:

1:1

Gauge Port:

Yes

Inlet Quantity:

1

Regulator Inlet Size:

-6 AN

Inlet Attachment:

Female straight cut O-ring

Outlet Quantity:

1

Regulator Outlet Size:

-6 AN

Outlet Attachment:

Female straight cut O-ring

Return Fitting Size:

-6 AN

Return Attachment:

Female straight cut O-ring

Fittings Included:

No

Regulator Material:

Aluminum

Regulator Color:

Black

Rebuildable:

Yes

Mounting Bracket Included:

Yes

Remanufactured:

No

Quantity:

Sold individually.

Holley HP Billet Fuel Pressure Regulators

Part of Holley's complete line of fuel system products, Holley HP billet fuel pressure regulators are available in a variety of configurations for carbureted or fuel injected engines. Some versions are even adaptable to either carburetors or EFI. They allow you to upgrade a carbureted system to EFI without replacing the fuel pressure regulator.

All HP billet fuel pressure regulators feature a 2-port design, provide for precise fuel pressure adjustments, and are available in your choice of demand (no return line) or by-pass (with a return line) styles. Depending on the model, they are for use only with electric fuel pumps, or with either mechanical or electric pumps. Designed for street/strip applications, they are CNC-machined from 6061 T-6 billet aluminum for strength and have bright dip anodized black bodies with clear dip anodized tops for corrosion resistance and good looks. Whatever your fuel system needs, Holley has you covered.

Depending on model, features may include:

* Adjustable from 4 to 65 psi for use with EFI or carburetors
* 4.5 to 9 psi adjustment range for use with carburetors only
* EFI-only models are adjustable from 15 to 65 psi
* Two port sizes available, 3/8 in. NPT or -6 AN inlet/outlet and return (where applicable)
* Fitting for manifold reference
* 1/8 in. NPT gauge port
* Boost reference--1:1

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 89987502664

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Laura Moreno
Charlottesville, US
★★★★★ 5
Great
Had a splash guard come off my Honda and these were perfect and so easy to put the splash guard back on. They are very durable and good quality. I recommend these!
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Reviewed in the United States on March 27, 2026
M
Verified Purchase
Miriam Sariol
Whiting, US
★★★★★ 5
Easy to use
Kinda cool that it brings different size clips and the tool makes it easy to pull the clips out.
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Reviewed in the United States on December 28, 2025
S
Verified Purchase
Stephan F.
Belleville, US
★★★★★ 4
Fit as described
Used to install an inner fender liner. Seem a little more fragile than OEM, but suitable for the intended use and much less expensive.
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Reviewed in the United States on November 8, 2023
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Shawn A Hughes
Grantham, US
★★★★★ 5
Fits well, good quality.
Good assortment for the price; clips fit well.
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Reviewed in the United States on March 10, 2026
H
Verified Purchase
Harold Monroe
Phoenix, US
★★★★★ 5
Good
Works great.
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Reviewed in the United States on January 11, 2026

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