1979-85 Mustang Holley Carbureted Bypass Fuel Pressure Regulator by Holley

Price: 144.95 USD
Availability: InStock

1979-85 Mustang Holley Carbureted Bypass Fuel Pressure Regulator

Easily adjust your 1979-1985 Mustang's fuel pressure with this carbureted bypass fuel pressure regulator from Holley!

Item #HLY-12803BP
MPN# 12-803BP

Everyday Low Price: $144.95

Low Stock Only 3 available.

This item is returnable. Details

This item is not eligible for discounts or coupon codes.

Free Shipping over $99

Add to Cart

LMR showroom & will call pickup service will be closed beginning Monday 9/21/26 for renovations until further notice. Need help? Contact Us.

Benefits

Adjustable Fuel Regulation
Specific For Return Style Fuel Systems
For Carbureted Motors
Holley Quality

Features

4.5 to 9 PSI Adjustable
Preset to 7 PSI
Three 3/8" NPT Ports
Chrome Finish

What's in the Box

(1) Fuel Pressure Regulator
(1) Mounting Bracket

Holley Fuel Pressure Regulator

Regulate the fuel pressure from the fuel pump to the carburetor in your 1979-1985 Mustang with Holley's bypass regulator! This regulator is specifically designed for your Mustang's return-style fuel system. Too much fuel pressure can cause flooding and driveability problems. You can adjust this regulator from 4-1/2 PSI to 9 PSI, and any unused fuel is bypassed to the fuel tank. Holley presets the regulator at 7 PSI from the factory so there's no guesswork after installation.

Holley Quality

Holley is well known for quality engine parts and this fuel pressure regulator is no exception. This regulator is constructed from high-quality aluminum and polished to a chrome finish. The inlet, outlet, and return port sizes are 3/8" NPT. A new mounting bracket is included so you can mount the new regulator anywhere you'd like. This fuel pressure regulator is backed by Holley's standard 90-day warranty from the date of purchase.

This product is intended for off-road use only. Off-Road Disclaimer

Holley Warranty - Click Here

Ford Mustang - 1979, 1980, 1981, 1982, 1983, 1984, 1985

Fitment Notice

1979-1985 Mustang w/ Carburetor
This regulator does not include fitting for the ports.
Not designed for use with Mechanical fuel pumps.

Installation Instructions

Download the pdf Link opens in a new window

California Residents:

WARNING: Cancer and Reproductive Harm- www.P65Warnings.ca.gov

About This Brand

Holley, The Heart & Soul of Performance.

For over 100 years Holley has been proven to be an industry leader by providing Mustang enthusiasts and racers with the high performance carburetors , intake manifolds, cylinder heads, and other quality performance components needed for today's competition. Holley's performance Mustang parts are perfect for any daily driven or high horsepower race car.