Product • Support • Tuning
Part # 12-803
$58.95
Holley fuel pressure regulators are designed to precisely control the fuel pressure from the fuel pump to the carburetor. Too much fuel pressure for a given needle and seat assembly can overload the needle and seat and may cause flooding or drivability problems. Each Holley fuel pressure regulator is fully adjustable so regulating the fuel pressure to your engines needs is a simple task. All Holley regulators are pre-set at the factory so there is no guesswork when first installing the regulator. The Holley 12-803 fuel pressure regulator features 3/8" NPT in/out ports.
Features & Benefits
Adjustable fuel regulation from 4-1/2 to 9 psi
Fits: Street/Strip Carbureted Applications Two Port Adjustable from 4.5 to 9 PSI
Installation note: The mounting holes in the regulator are not threaded. The screws included are self-tapping for use in installation. Regulator is compatible with Diesel #1 and Diesel #2.
In the box: Gauge Port, Mounting Bracket
| Adjustable | Yes |
| Color | Shiny |
| Fuel System | Gasoline |
| Fuel Type | Diesel |
| Inlet Gender | Female |
| Inlet Port Diameter | 3/8 IN |
| Inlet Port Quantity | 1 |
| Inlet Size | 3/8 inch NPT |
| Inlet Type | NPT |
| Material | Aluminum |
| Maximum Pressure | 9 PS |
| Minimum Pressure | 4.5 PS |
| Mounting Type | Inline |
| Outlet Gender | Female |
| Outlet Port Diameter | 3/8 IN |
| Outlet Port Quantity | 2 |
| Outlet Size | 3/8 inch NPT |
| Outlet Type | NPT |
| Port Quantity | 2 |
| Pressure Range | 4.5-9 PSI |
| Rebuildable | Yes |
| Style | Non-Return |
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