HOL-12-841KIT Holley Billet Bypass Fuel Pressure Regulator Kit
4.5-9 Psi – Fittings and Gauge Included
Features
- Fuel Gauge and adapter fittings included
- 1/8” NPT Gauge Port and Earl’s Fuel Pressure Gauge (100187ERL)
- 3/8″ NPT Ports
- Used in return style systems with a line back to the fuel tank
- Adjustable from 4.5-9 psi for precise fuel pressure adjustments
- Mounting Bracket Included
Product Video – YouTube
Holley Billet Bypass Style Fuel Pressure Regulator Kits are part of a complete line of fuel system products from Holley. The included 12-841 regulator features a billet aluminum body and a black finish for corrosion resistance and good looks. The regulator contains 3/8″ NPT in/out ports, a 3/8″ NPT return port, a 1/8″ NPT gauge port. In addition, 3 adapter fittings, a barbed fitting for the vacuum port, a mounting bracket, and all necessary hardware are also included.
Attributes:
| Pressure Range | 4.5-9 PSI |
| Adjustable | Yes |
| Brand | Holley |
| Category | Air and Fuel Delivery |
| Color | Black |
| Emission Code | 5 |
| Fuel System | Carbureted |
| Fuel Type | Gasoline |
| Gauge Port | Yes |
| Grade Type | Performance |
| Inlet Port Diameter | 3/8 |
| Inlet Quantity | 1 |
| Inlet Size | 3/8 inch NPT |
| Inlet Type | NPT |
| Material | Aluminium |
| Maximum Pressure Reading | 15 |
| Mounting Hardware Included | Yes |
| Mounting Type | Inline |
| Outlet Port Diameter | 3/8 |
| Outlet Quantity | 2 |
| Outlet Size | 3/8 inch NPT |
| Outlet Type | NPT |
| part type | Fuel Pressure Regulator |
| Port Quantity | 3 |
| Product Type | Fuel Pressure Regulator |
| Return Size | 3/8 inch NPT |
| Style | Bypass |
| Sub Category | Carburetion |
| Warranty | Manufacturer’s Limited 90 Day Warranty |






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