Dominator Billet Carbureted By Pass Fuel Pressure Regulator - 12-847

  • $204.95
    Unit price per 


Holley® Billet Fuel Pressure Regulators are part of a complete line of fuel system products from Holley®. They are precision machined from 6061-T6 billet aluminum for strength and durability. They feature a black bright dip anodized body and a clear bright dip anodized top for corrosion resistance and good looks. The Holley 12-847 fuel pressure regulator features (1) -10 AN O-ring inlet, (1) -10 AN O-ring outlet, (1) -8 AN O-ring return.


  • Adjustable from 4.5-9 psi for precise fuel pressure adjustments
  • Constructed of billet aluminum with a black anodized base and clear anodize top for good looks
  • Used in systems with a return line back to tank
  • Use with electric pumps only
  • (1) -10 an o-ring inlet, (1) -10 an o-ring outlet, (1) -8 an o-ring return
  • 1/8" NPT gauge port
  • Designed for use with the Holley® Dominator™ in-line fuel pumps or other high pressure pumps where return line is needed
  • Mounting bracket included

Year Make Model Submodel Engine Size

Brand Holley
Color Black Anodized
Emission Code 5
Fuel System Carbureted
Fuel Type Diesel
Fuel Type Gasoline
Material Aluminum
Pressure Range 4.5-9 PSI
Product Type Fuel Pressure Regulator
Return Size 8 AN O-Ring
Style Bypass
Warning California Proposition 65
Warranty Limited 90 Day