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

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  • Holley Mustang Carbureted Bypass Fuel Pressure Regulator (79-85) 12-803BP
Holley Mustang Carbureted Bypass Fuel Pressure Regulator (79-85) 12-803BP

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

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

Your Price: $79.79

Market Price:$86.50
You Save 7.76 % ($6.71)

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


  • 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

Product Description

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 all 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.

-Fits 1979-1985 Mustang w/ Carburetor

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Vehicle Applications

Ford Mustang - 1979 (79) - 1980 (80) - 1981 (81) - 1982 (82) - 1983 (83) - 1984 (84) - 1985 (85)

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.

Look for Similar Items by Category

Ford Mustang Parts » Mustang Air & Fuel Delivery » Mustang Fuel System » Mustang Fuel Pressure Regulators
1979-1993 Mustang Parts » 1979-1993 Mustang Air & Fuel » 1979-1993 Mustang Fuel System » 1979-1993 Mustang Fuel Pressure Regulators & Gauges

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