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Holley 12-803 Universal Fit Fuel Pressure Regulator
Holley 12-803 Universal Fit Fuel Pressure Regulator
Holley 12-803 Universal Fit Fuel Pressure Regulator
Holley 12-803 Universal Fit Fuel Pressure Regulator
Holley 12-803 Universal Fit Fuel Pressure Regulator
Holley 12-803 Universal Fit Fuel Pressure Regulator
Holley 12-803 Universal Fit Fuel Pressure Regulator
Holley
SKU 12-803

Holley 12-803 Chrome Carbureted Fuel Pressure Regulator Street/strip Carbureted Applications Two Port Adjustable from 4.5 to 9

$51.95 USD
In Stock - Fast Shipping
Free shipping For USA, up to 50 lbs
90-day returns Free, no restocking fees
Warranty Manufacturer's Limited 90 Day

Holley fuel pressure regulators are designed to precisely control the fuel pressure from the fuel pump to the carburetor. Too much fuel pressure for a given needle and seat assembly can overload the needle and seat and may cause flooding or drivability problems.

Each Holley fuel pressure regulator is fully adjustable so regulating the fuel pressure to your engines needs is a simple task. All Holley regulators are pre-set at the factory so there is no guesswork when first installing the regulator.

The Holley 12-803 fuel pressure regulator features 3/8 inch NPT in/out ports.

Features and Benefits:

  • Adjustable fuel regulation from 4-1/2 to 9 psi .220 inch (7/32 inch) restriction 3/8 inch NPT ports ( 1 inch, 2 out) Chrome finish Mounting bracket included

Associated Comments:

  • The mounting holes in the regulator are not threaded. The screws included are self-tapping for use in installation.
  • Regulator is compatible with Diesel #1 and Diesel #2.

Details:

  • Adjustable: Yes
  • Color: Shiny
  • Fuel Type: Diesel | Gasoline
  • Fuel System: Gasoline
  • Gauge Included: No
  • Gauge Port Included: Yes
  • Grade Type: Performance
  • Inlet Gender: Female
  • Inlet Port Diameter: 3/8 Inch
  • Inlet Port Quantity: 1.0
  • Inlet Size: 3/8 inch NPT
  • Inlet Type: NPT
  • Material: Aluminum
  • Maximum Pressure: 9 Pounds per Square Inch
  • Minimum Pressure: 4.5 Pounds per Square Inch
  • Mounting Bracket Included: Yes
  • Mounting Type: Inline
  • Outlet Gender: Female
  • Outlet Port Diameter: 3/8 Inch
  • Outlet Port Quantity: 2.0
  • Outlet Size: 3/8 inch NPT
  • Outlet Type: NPT
  • Port Quantity: 2.0
  • Pressure Range: 4.5-9 PSI
  • Rebuildable: Yes
  • Style: Non-Return

Installation Guide: Download PDF

Installation / Product Video: Watch on YouTube


⚠️ California Proposition 65 Warning
California Residents: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit www.p65warnings.ca.gov for more information.

Warranty: Manufacturer's Limited 90 Day Warranty

A vehicle fitment list isn’t available for this part.

Please check the product description for the manufacturer’s application details, or ask a specialist — we’ll confirm whether it fits your vehicle before you buy.

Shipping Information

Free shipping is available for eligible orders.

Shipping: For USA - Up to 50lbs.

Orders are processed during normal business days. Delivery dates may vary by carrier and destination.

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$51.95