Product Summary

Universal Fit, 1-4 Fuel Pressure Rating (psi), Aluminum

  • Designed to be used with standard pump only
  • Measures 2-1/2" wide and 1-1/2" tall and deep
  • 3/8" NPT Inlet/Outlets
  • This low pressure fuel regulator is factory-set to 2.7 PSI, but is fully adjustable from 1 to 4 PSI
  • It includes mounting bracket with 2 each self-tapping screws for regulator to bracket installation purposes and 3 screws for bracket to vehicle installation

Key Specs

MFG. Part #12-804
BrandHolley
Material TypeAluminum

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Holley 12-804 Details

This Holley universal low pressure fuel regulator is factory-set to 2.7 PSI, but is fully adjustable from 1 to 4 PSI. Use with standard pump only - not recommended for maximum pressure pumps. Fuel pressure regulator includes mounting bracket with 2 each self-tapping screws for regulator to bracket installation purposes and 3 screws for bracket to vehicle installation.

Regulator has a 3/8" NPT tapped fuel pressure gauge port and requires reducer 617-6157 to install the gauge. Fuel pump regulator has 3/8" NPT inlet/outlet ports.

 

Bracket Measurements:

  • 2-1/2" wide
  • 1-1/2" tall and deep
  • 1-3/4" hole spacing to mount the regulator to the bracket
  • Chrome steel construction

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Holley 12-804 Specifications

KEY SPECS
MFG. Part #12-804
BrandHolley
Material TypeAluminum
GENERAL
Fuel Pressure Rating (psi)1-4
Sold in QuantityEach
NotesThis part is flash chromed.
Overall Height1.91"
GTIN Code090127020234

Ratings & Reviews

4.6

39 Reviews

Customers say

Customers commend this product for its high quality performance and practicality. They noticed an improvement in their car performance after replacing older and defective regulators with this one. Many found it to be the perfect solution for their vehicles, especially for certain models like the Stromberg's 97, Datsun 240z with dual SU carburetors, and others. Some experienced ease of installation and adjustments. A few customers reported pressure spikes that required a bypass creation, and one customer criticized the product for its offshore manufacturing and design. Regardless, overall, buyers considered this product to be reliable and effective.