Holley 12-804 Adjustable Fuel Pressure Regulator, 1-4 PSI
Universal Fit, 1-4 Pressure Range (psi), Aluminum, Chrome
- Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
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)
- 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
More Like This
Offenhauser Chrome Universal Adjust. Fuel Pressure Regulator, 1-6 PSI
Holley 12-879 Fuel Pressure Regulator 4-65 PSI 3/8 Inch NPT
Holley 12-704 Big Port Adjustable Fuel Pressure Regulator, 4.5-9 PSI
Holley 12-880 Adjustable Billet By-Pass Regulator, -6 AN
Holley 12-707 Billet Carbureted Fuel Pressure Regulator
Holley 12-840 HP Billet Carbureted Fuel Pressure Regulator, Adjustable
Holley 12-843 HP Billet Carbureted Fuel Pressure Regulator, Adjustable
Holley 12-845 HP Billet Carbureted By-Pass Fuel Pressure Regulator
Holley 12-847 Dominator Billet Carbureted By-Pass Fuel Pressure Reg.
Holley EFI 12-865 4 Port VR Series Fuel Pressure Regulator, 4-9 PSI
Q & A
In this episode, Project Chevelle takes a big step in its muscle car transformation. It's out with the little old 307 and to the dyno with our new 383 from BluePrint Engines!
Speedway Motors employee Pat O. takes some time to discuss the Fuel Gauge Interface Module that allows you to use any gauge set with almost any fuel level sending unit.
Looking to replace your fuel level guage or sending unit? It's important that you have the the right guage for the right sender. Speedway has the tools to make the job easy and ensure you get the right parts the first time.
Pat talks about our Tanks Inc. EFI fuel tanks.