12-842 HP Billet carburetted Bypass fuel pressure regulator idle bleed


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SKU: H12-842 Category:


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 aluminium 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 12-842 fuel pressure regulator features 3/8″ NPT in/out ports and a 3/8 NPT return port.


  • 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
  • Utilizes a idle bleed for precise control of idle pressure
  • Used in systems with a return line back to tank
  • Use with electric pumps only
  • One 3/8″ NPT inlet, one 3/8″ NPT outlet and one 3/8″ NPT return (or bypass)
  • 1/8″ NPT gauge port
  • Comparable and interchangeable with popular Holley® 12-803BP regulator
  • Mounting bracket included

Additional information

Weight 0.6 kg
Dimensions 15 × 15 × 10 cm


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