Holley EFI 12-851 2-Port VR Series Fuel Pressure Regulator 40-100 PSI — E85/Gas/Methanol Compatible

SKU: GVMR_12-851
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About Holley EFI Holley EFI engineers high-quality automotive parts and ...Read More

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Holley EFI

Holley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.

Achieve Unrivaled Fuel System Control with the Holley EFI 2-Port VR Series Fuel Pressure Regulator

Ensure consistent and precise fuel delivery to your high-performance engine with the Holley EFI 2-Port VR Series Fuel Pressure Regulator (P/N 12-851). Engineered for demanding EFI applications, this regulator offers an adjustable pressure range from 40 to 100 PSI, providing the flexibility needed for a wide array of setups, from street machines to dedicated race vehicles. Its robust design is fully compatible with E85, gasoline, and methanol fuels, making it a versatile choice for any serious builder. Featuring a sleek black/clear anodized finish and convenient AN-10 O-ring ports, the 12-851 regulator is built for both performance and ease of installation.

Key Features for Superior Fuel Management:

  • Wide Pressure Adjustment: Precisely tune your fuel pressure from 40 to 100 PSI to match your engine's specific requirements.
  • 2-Port VR Series Design: Optimized for efficient fuel flow and consistent pressure regulation in high-demand EFI systems.
  • Multi-Fuel Compatibility: Safely handles E85, gasoline, and methanol, offering maximum versatility for various fuel types.
  • Premium AN-10 O-Ring Ports: Features a -10 AN female O-ring inlet, outlet, and return, ensuring leak-free connections and high flow capacity.
  • Integrated 1/8 in NPT Port: Convenient for adding a fuel pressure gauge or sensor for real-time monitoring.
  • Durable Anodized Finish: Black and clear anodizing provides excellent corrosion resistance and a professional appearance.

Why the Holley EFI 12-851 Regulator is a Must-Have:

A stable and accurately regulated fuel pressure is paramount for optimal engine performance and longevity. The Holley EFI 12-851 regulator excels in maintaining consistent pressure, even under fluctuating fuel pump loads, preventing lean conditions or fuel starvation that can lead to engine damage. Its high-quality construction and thoughtful design, including included fittings, simplify installation and provide long-term reliability. Whether you're upgrading an existing EFI system or building a new one, this Holley EFI regulator delivers the control and confidence you need to push your engine to its limits.

Experience the difference of precise fuel control. Get your Holley EFI 12-851 Fuel Pressure Regulator today at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Holley EFI

Holley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.

Achieve Unrivaled Fuel System Control with the Holley EFI 2-Port VR Series Fuel Pressure Regulator

Ensure consistent and precise fuel delivery to your high-performance engine with the Holley EFI 2-Port VR Series Fuel Pressure Regulator (P/N 12-851). Engineered for demanding EFI applications, this regulator offers an adjustable pressure range from 40 to 100 PSI, providing the flexibility needed for a wide array of setups, from street machines to dedicated race vehicles. Its robust design is fully compatible with E85, gasoline, and methanol fuels, making it a versatile choice for any serious builder. Featuring a sleek black/clear anodized finish and convenient AN-10 O-ring ports, the 12-851 regulator is built for both performance and ease of installation.

Key Features for Superior Fuel Management:

  • Wide Pressure Adjustment: Precisely tune your fuel pressure from 40 to 100 PSI to match your engine's specific requirements.
  • 2-Port VR Series Design: Optimized for efficient fuel flow and consistent pressure regulation in high-demand EFI systems.
  • Multi-Fuel Compatibility: Safely handles E85, gasoline, and methanol, offering maximum versatility for various fuel types.
  • Premium AN-10 O-Ring Ports: Features a -10 AN female O-ring inlet, outlet, and return, ensuring leak-free connections and high flow capacity.
  • Integrated 1/8 in NPT Port: Convenient for adding a fuel pressure gauge or sensor for real-time monitoring.
  • Durable Anodized Finish: Black and clear anodizing provides excellent corrosion resistance and a professional appearance.

Why the Holley EFI 12-851 Regulator is a Must-Have:

A stable and accurately regulated fuel pressure is paramount for optimal engine performance and longevity. The Holley EFI 12-851 regulator excels in maintaining consistent pressure, even under fluctuating fuel pump loads, preventing lean conditions or fuel starvation that can lead to engine damage. Its high-quality construction and thoughtful design, including included fittings, simplify installation and provide long-term reliability. Whether you're upgrading an existing EFI system or building a new one, this Holley EFI regulator delivers the control and confidence you need to push your engine to its limits.

Experience the difference of precise fuel control. Get your Holley EFI 12-851 Fuel Pressure Regulator today at GGCRACING.

Product Details

Product Description

About Holley EFI

Holley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.

Achieve Unrivaled Fuel System Control with the Holley EFI 2-Port VR Series Fuel Pressure Regulator

Ensure consistent and precise fuel delivery to your high-performance engine with the Holley EFI 2-Port VR Series Fuel Pressure Regulator (P/N 12-851). Engineered for demanding EFI applications, this regulator offers an adjustable pressure range from 40 to 100 PSI, providing the flexibility needed for a wide array of setups, from street machines to dedicated race vehicles. Its robust design is fully compatible with E85, gasoline, and methanol fuels, making it a versatile choice for any serious builder. Featuring a sleek black/clear anodized finish and convenient AN-10 O-ring ports, the 12-851 regulator is built for both performance and ease of installation.

Key Features for Superior Fuel Management:

  • Wide Pressure Adjustment: Precisely tune your fuel pressure from 40 to 100 PSI to match your engine's specific requirements.
  • 2-Port VR Series Design: Optimized for efficient fuel flow and consistent pressure regulation in high-demand EFI systems.
  • Multi-Fuel Compatibility: Safely handles E85, gasoline, and methanol, offering maximum versatility for various fuel types.
  • Premium AN-10 O-Ring Ports: Features a -10 AN female O-ring inlet, outlet, and return, ensuring leak-free connections and high flow capacity.
  • Integrated 1/8 in NPT Port: Convenient for adding a fuel pressure gauge or sensor for real-time monitoring.
  • Durable Anodized Finish: Black and clear anodizing provides excellent corrosion resistance and a professional appearance.

Why the Holley EFI 12-851 Regulator is a Must-Have:

A stable and accurately regulated fuel pressure is paramount for optimal engine performance and longevity. The Holley EFI 12-851 regulator excels in maintaining consistent pressure, even under fluctuating fuel pump loads, preventing lean conditions or fuel starvation that can lead to engine damage. Its high-quality construction and thoughtful design, including included fittings, simplify installation and provide long-term reliability. Whether you're upgrading an existing EFI system or building a new one, this Holley EFI regulator delivers the control and confidence you need to push your engine to its limits.

Experience the difference of precise fuel control. Get your Holley EFI 12-851 Fuel Pressure Regulator today at GGCRACING.

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