Holley

BILLET FP REG, ADJ 4.5-9 PSI 3/8 NPT

$359.95

SKU: H00E 12-840

In Stock
In Stock
Ships by Jun 9
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Non-Returnable Item

Description

Part #: 12-840

Holley (R) Billet Fuel Pressure Regulators are part of a complete line of fuel system products from Holley (R). 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 12-840 fuel pressure regulator features 3/8" NPT in/out ports.

Features:

  • 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 where a return line is not needed
  • Use with electric or mechanical pumps
  • One 3/8" NPT inlet and two 3/8" NPT outlets
  • 1/8" NPT gauge port
  • Comparable and interchangeable with popular Holley (R) 12-803 regulator
  • Mounting bracket included

Street/Strip Carbureted Applications Two Port Adjustable from 4.5 to 9 PSI

Fitment

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Specifications

BrandHolley
Part NumberH00E 12-840
Weight0.6 lb

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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