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Holley 12-804 Adjustable Fuel Pressure Regulator, 1-4 PSI

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3/8" NPT
This part is flash chromed.
Holley 12-804 Adjustable Fuel Pressure Regulator, 1-4 PSI
Holley 12-804 Adjustable Fuel Pressure Regulator, 1-4 PSI

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Q & A

What's in the Box

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.

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.

427-12804 Instructions (PDF)

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910-13109 Instructions (PDF)

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Aluminum Pipe Bushing Reducer Fitting, 3/8 NPT to 1/8 NPT

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Fitting Thread Application Chart (GIF)