Holley HP Billet EFI Bypass Fuel Pressure Regulator Adjustable 12-846

Holley HP Billet EFI Bypass Fuel Pressure Regulator Adjustable 12-846

Your Price: $165.95
In Stock.
Part Number:12-846
Holley HP Billet EFI By Pass Fuel Pressure Regulator
  • Street/Strip EFI Applications
  • Two Port Adjustable from 15 to 65 PSI
  • Boost Reference - 1:1

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 12-846 fuel pressure regulator features(1) -8 AN O-ring inlet, (1) -8 AN O-ring outlet, (1) -6 AN O-ring return.


  • Adjustable from 15-65 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
  • Includes fitting for manifold reference
  • Use with electric pumps only
  • (1) -8 an o-ring inlet, (1) -8 an o-ring outlet, (1) -6 an o-ring return
  • 1/8" NPT gauge port
  • Designed for use with the Holley® HP™ in-line fuel pumps or other high pressure electric pumps where return line is needed
  • Mounting bracket included
ColorBlack Anodized
Emission Code3
Fuel SystemEFI
Fuel TypeGasoline / Diesel / E85
Inlet Size8 AN O-Ring
Outlet Size8 AN O-Ring
Pressure Range15-65 PSI
Product TypeRegulator
Return Size6 AN O-Ring
Part Number12-846

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