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#UP234692
Holley 12-804 Adjustable Fuel Pressure Regulator, 1-4 PSI
- Incomplete
- Item is missing one or more components. Please review the photos and description section for details on what is included
- Designed to be used with standard pump only
$43.99
/each
In Stock
$51.95
Save $7.96
Order soon, only 1 left in stock!
Item is missing one or more components. Please review the photos and description section for details on what is included.
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Product Summary
- Incomplete
- Item is missing one or more components. Please review the photos and description section for details on what is included
- 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 |
| Brand | Holley |
| Garage Sale Type | Incomplete |
| Regulator Style | Return |
| Material Type | Aluminum |
Need To Know
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855.313.9176Ineligible for Return
Contains items that cannot be returned
Holley 12-804 Details
Holley 12-804 Details

This is Garage Sale priced due to the item missing 1 or more components. Please review the photos for what you are purchasing. THIS IS MISSING THE MOUNTING SCREWS.
NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS
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
Charts
427-12804 Instructions (PDF)
Holley 12-804 Specifications
Holley 12-804 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 12-804 |
| Brand | Holley |
| Garage Sale Type | Incomplete |
| Regulator Style | Return |
| Material Type | Aluminum |
| GENERAL | |
| Fuel Pressure Rating (psi) | 1-4 |
| Pressure Regulator Inlet Size | 3/8" NPT |
| Pressure Regulator Outlet Size | 3/8" NPT |
| Sold in Quantity | Each |
| Notes | This part is flash chromed. |
| Overall Height | 1.91" |
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