Holley HP Billet Bypass Fuel Pressure Regulator 4-65 PSI 6AN — Versatile for Diesel, E85, Gas Applications

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SKU: BBVL_12-880
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About Holley Holley is the legendary American carburetor and fuel-injection ...Read More

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Sale price$179.95 Regular price$186.95
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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

Holley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.

Watch in action

Precision Fuel Control Across a Broad Pressure Range

For enthusiasts and tuners who demand ultimate flexibility and precision in their fuel systems, the Holley HP Billet Bypass Fuel Pressure Regulator (MPN: 12-880) is an indispensable component. This regulator stands out with its exceptionally wide adjustable pressure range, allowing for fine-tuning from a low 4 PSI up to 65 PSI. This versatility makes it suitable for a vast array of engine configurations, from carbureted setups to advanced EFI systems, ensuring optimal fuel delivery regardless of your specific needs.

Engineered for Adaptability and Performance

Constructed from high-grade billet aluminum and finished with a durable black and clear anodized coating, this Holley HP regulator is built for both performance and longevity. Its in-line design and efficient bypass mechanism provide stable and consistent fuel pressure, critical for engine protection and maximizing power output. The multi-fuel compatibility further enhances its appeal, making it a go-to choice for diverse automotive applications.

  • Exceptional Pressure Range: Adjustable from 4 to 65 PSI for broad application use
  • Fitting Sizes: Triple 6 AN female O-ring ports for inlet, outlet, and return
  • Gauge Port: Convenient 1/8 in NPT port for easy pressure monitoring
  • Fuel Compatibility: Fully compatible with Diesel, E85, and Gasoline fuels
  • Construction: Premium HP Billet aluminum for strength and thermal stability

The Ultimate Choice for Custom Fuel Systems

The Holley HP Billet Bypass Regulator (12-880) offers unparalleled control over your fuel system, allowing you to fine-tune pressure for optimal engine response and efficiency. Its robust design and wide compatibility ensure that your fuel system can meet the demands of any performance scenario, providing peace of mind and consistent power. Whether you're building a custom setup or upgrading for increased performance, this regulator is engineered to deliver. Discover superior fuel system components at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Holley

Holley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.

Watch in action

Precision Fuel Control Across a Broad Pressure Range

For enthusiasts and tuners who demand ultimate flexibility and precision in their fuel systems, the Holley HP Billet Bypass Fuel Pressure Regulator (MPN: 12-880) is an indispensable component. This regulator stands out with its exceptionally wide adjustable pressure range, allowing for fine-tuning from a low 4 PSI up to 65 PSI. This versatility makes it suitable for a vast array of engine configurations, from carbureted setups to advanced EFI systems, ensuring optimal fuel delivery regardless of your specific needs.

Engineered for Adaptability and Performance

Constructed from high-grade billet aluminum and finished with a durable black and clear anodized coating, this Holley HP regulator is built for both performance and longevity. Its in-line design and efficient bypass mechanism provide stable and consistent fuel pressure, critical for engine protection and maximizing power output. The multi-fuel compatibility further enhances its appeal, making it a go-to choice for diverse automotive applications.

  • Exceptional Pressure Range: Adjustable from 4 to 65 PSI for broad application use
  • Fitting Sizes: Triple 6 AN female O-ring ports for inlet, outlet, and return
  • Gauge Port: Convenient 1/8 in NPT port for easy pressure monitoring
  • Fuel Compatibility: Fully compatible with Diesel, E85, and Gasoline fuels
  • Construction: Premium HP Billet aluminum for strength and thermal stability

The Ultimate Choice for Custom Fuel Systems

The Holley HP Billet Bypass Regulator (12-880) offers unparalleled control over your fuel system, allowing you to fine-tune pressure for optimal engine response and efficiency. Its robust design and wide compatibility ensure that your fuel system can meet the demands of any performance scenario, providing peace of mind and consistent power. Whether you're building a custom setup or upgrading for increased performance, this regulator is engineered to deliver. Discover superior fuel system components at GGCRACING.

Product Details

Product Description

About Holley

Holley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.

Watch in action

Precision Fuel Control Across a Broad Pressure Range

For enthusiasts and tuners who demand ultimate flexibility and precision in their fuel systems, the Holley HP Billet Bypass Fuel Pressure Regulator (MPN: 12-880) is an indispensable component. This regulator stands out with its exceptionally wide adjustable pressure range, allowing for fine-tuning from a low 4 PSI up to 65 PSI. This versatility makes it suitable for a vast array of engine configurations, from carbureted setups to advanced EFI systems, ensuring optimal fuel delivery regardless of your specific needs.

Engineered for Adaptability and Performance

Constructed from high-grade billet aluminum and finished with a durable black and clear anodized coating, this Holley HP regulator is built for both performance and longevity. Its in-line design and efficient bypass mechanism provide stable and consistent fuel pressure, critical for engine protection and maximizing power output. The multi-fuel compatibility further enhances its appeal, making it a go-to choice for diverse automotive applications.

  • Exceptional Pressure Range: Adjustable from 4 to 65 PSI for broad application use
  • Fitting Sizes: Triple 6 AN female O-ring ports for inlet, outlet, and return
  • Gauge Port: Convenient 1/8 in NPT port for easy pressure monitoring
  • Fuel Compatibility: Fully compatible with Diesel, E85, and Gasoline fuels
  • Construction: Premium HP Billet aluminum for strength and thermal stability

The Ultimate Choice for Custom Fuel Systems

The Holley HP Billet Bypass Regulator (12-880) offers unparalleled control over your fuel system, allowing you to fine-tune pressure for optimal engine response and efficiency. Its robust design and wide compatibility ensure that your fuel system can meet the demands of any performance scenario, providing peace of mind and consistent power. Whether you're building a custom setup or upgrading for increased performance, this regulator is engineered to deliver. Discover superior fuel system components at GGCRACING.

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