đźšš Free Worldwide Shipping on All Orders!Shop Now
HomeStore

Holley HP Billet 4.5 to 9 psi In-Line Fuel Pressure Regulator - 3/8 in NPT Inlet - 3/8 in NPT Outlet - 1/8 in NPT Port - Bypass / Black Anodized - Diesel / E85 / Gas 12-842

Product image 1
1 / 8
+3

Holley HP Billet 4.5 to 9 psi In-Line Fuel Pressure Regulator - 3/8 in NPT Inlet - 3/8 in NPT Outlet - 1/8 in NPT Port - Bypass / Black Anodized - Diesel / E85 / Gas 12-842

Holley HP Billet Fuel Pressure Regulator 12-842 4.5-9 PSI - 3/8" NPT Ports - Carbureted Bypass w/Idle Bleed - Black/Clear Anodized

  • CNC Machined
  • Black Bright Dip Anodized Body
  • Clear Bright Dip Anodized Ends
  • Corrosion Resistance And Good Looks
  • Feature A Gauge Port
  • Include Mounting Plate For Easy Installation
  • 1/8" NPT Gauge Port

    • Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!

    Fuel Pressure Regulator

  • Constructed of billet aluminum with a black anodized base and clear anodize top for good looks
  • Utilizes a idle bleed for precise control of idle pressure
  • Used in systems with a return line back to tank
  • One 3/8" NPT inlet, one 3/8" NPT outlet and one 3/8" NPT return (or bypass)
  • 1/8" NPT gauge port
  • Comparable and interchangeable with popular Holley 12-803BP regulator
  • Mounting bracket included

    • Product Description:

  • Fuel Pressure Regulator
  • HP Billet
  • 4.5 to 9 psi
  • In-Line
  • 3/8 in NPT Inlet
  • 3/8 in NPT Outlet
  • 1/8 in NPT Port
  • Bypass
  • Aluminum
  • Natural / Black Anodized
  • Diesel / E85 / Gas
  • Sold Individually
    • For over a century Holley has driven the cutting edge of fuel-system design. That work continues today through Holley’s market-leading EFI products as well as through Holley’s family of best-in-industry brands. Top brands like MSD, Flowmaster, Hurst, Accel, and many more make up the industry’s leading offering of enthusiast-driven products to deliver robust, complete performance solutions for builders, racers, and drivers. From propelling the LS-, Coyote-, and Gen 3 Hemi-swap trends, to continuously innovating late-model and vintage vehicle performance, Holley’s commitment to its customers and their cars is at the core of everything we do.

    Holley HP Billet Fuel Pressure Regulator 12-842 4.5-9 PSI - 3/8" NPT Ports - Carbureted Bypass w/Idle Bleed - Black/Clear Anodized

  • CNC Machined
  • Black Bright Dip Anodized Body
  • Clear Bright Dip Anodized Ends
  • Corrosion Resistance And Good Looks
  • Feature A Gauge Port
  • Include Mounting Plate For Easy Installation
  • 1/8" NPT Gauge Port

    • Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!

    Fuel Pressure Regulator

  • Constructed of billet aluminum with a black anodized base and clear anodize top for good looks
  • Utilizes a idle bleed for precise control of idle pressure
  • Used in systems with a return line back to tank
  • One 3/8" NPT inlet, one 3/8" NPT outlet and one 3/8" NPT return (or bypass)
  • 1/8" NPT gauge port
  • Comparable and interchangeable with popular Holley 12-803BP regulator
  • Mounting bracket included

    • Product Description:

  • Fuel Pressure Regulator
  • HP Billet
  • 4.5 to 9 psi
  • In-Line
  • 3/8 in NPT Inlet
  • 3/8 in NPT Outlet
  • 1/8 in NPT Port
  • Bypass
  • Aluminum
  • Natural / Black Anodized
  • Diesel / E85 / Gas
  • Sold Individually
    • For over a century Holley has driven the cutting edge of fuel-system design. That work continues today through Holley’s market-leading EFI products as well as through Holley’s family of best-in-industry brands. Top brands like MSD, Flowmaster, Hurst, Accel, and many more make up the industry’s leading offering of enthusiast-driven products to deliver robust, complete performance solutions for builders, racers, and drivers. From propelling the LS-, Coyote-, and Gen 3 Hemi-swap trends, to continuously innovating late-model and vintage vehicle performance, Holley’s commitment to its customers and their cars is at the core of everything we do.
    $52.37

    Original: $174.55

    -70%
    Holley HP Billet 4.5 to 9 psi In-Line Fuel Pressure Regulator - 3/8 in NPT Inlet - 3/8 in NPT Outlet - 1/8 in NPT Port - Bypass / Black Anodized - Diesel / E85 / Gas 12-842—

    $174.55

    $52.37

    Description

    Holley HP Billet Fuel Pressure Regulator 12-842 4.5-9 PSI - 3/8" NPT Ports - Carbureted Bypass w/Idle Bleed - Black/Clear Anodized

  • CNC Machined
  • Black Bright Dip Anodized Body
  • Clear Bright Dip Anodized Ends
  • Corrosion Resistance And Good Looks
  • Feature A Gauge Port
  • Include Mounting Plate For Easy Installation
  • 1/8" NPT Gauge Port

    • Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!

    Fuel Pressure Regulator

  • Constructed of billet aluminum with a black anodized base and clear anodize top for good looks
  • Utilizes a idle bleed for precise control of idle pressure
  • Used in systems with a return line back to tank
  • One 3/8" NPT inlet, one 3/8" NPT outlet and one 3/8" NPT return (or bypass)
  • 1/8" NPT gauge port
  • Comparable and interchangeable with popular Holley 12-803BP regulator
  • Mounting bracket included

    • Product Description:

  • Fuel Pressure Regulator
  • HP Billet
  • 4.5 to 9 psi
  • In-Line
  • 3/8 in NPT Inlet
  • 3/8 in NPT Outlet
  • 1/8 in NPT Port
  • Bypass
  • Aluminum
  • Natural / Black Anodized
  • Diesel / E85 / Gas
  • Sold Individually
    • For over a century Holley has driven the cutting edge of fuel-system design. That work continues today through Holley’s market-leading EFI products as well as through Holley’s family of best-in-industry brands. Top brands like MSD, Flowmaster, Hurst, Accel, and many more make up the industry’s leading offering of enthusiast-driven products to deliver robust, complete performance solutions for builders, racers, and drivers. From propelling the LS-, Coyote-, and Gen 3 Hemi-swap trends, to continuously innovating late-model and vintage vehicle performance, Holley’s commitment to its customers and their cars is at the core of everything we do.