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Specifications:
| 40 | Yes |
| Brand | Holley |
| Category | Air and Fuel Delivery |
| Color | Chrome |
| Emission Code | 5 |
| Fuel System | Carbureted |
| Fuel Type | Gasoline |
| Gauge Port | Yes |
| 3390 | Performance |
| Inlet Port Diameter | 3/8 |
| Inlet Quantity | 1 |
| Inlet Size | 3/8 inch NPT |
| 596 | NPT |
| Material | Aluminium |
| Maximum Pressure Reading | 100 |
| Mounting Hardware Included | Yes |
| 90 | Inline |
| Outlet Port Diameter | 3/8 |
| Outlet Quantity | 1 |
| Outlet Size | 3/8 inch NPT |
| 598 | NPT |
| part type | Fuel Pressure Regulator |
| 890 | 3 |
| Pressure Range | 4.5-9 PSI |
| Product Type | Fuel Pressure Regulator |
| Return Size | 3/8 inch NPT |
| Style | Bypass |
| Sub Category | Carburetion |
| Warning | California Proposition 65 |
| Warranty | Manufacturer's Limited 90 Day Warranty |
| Description_INV | 12881 REGULATOR KIT GAUGE AND FITTINGS |
| Description_ASC | The mounting holes in the regulator are not threaded. The screws included are self-tapping for use in installation. |
| Description_DES | Holley Die Cast Bypass Fuel Pressure Regulator Kit |
| Description_EXT | 4.5-9 Psi - Fittings and Gauge Included |
| Description_MKT | Holley Die Cast Bypass Style Fuel Pressure Regulator Kits are part of a complete line of fuel system products from Holley. The included 12-881 regulator features a die cast aluminum body and a chrome top for corrosion resistance and good looks. The regulator contains 3/8" NPT in/out ports, a 3/8" NPT return port, and a 1/8" NPT gauge port. In addition, 3 Earl's 3/8" NPT to -6 AN fittings, a barbed fitting for the vacuum port, a mounting bracket, and all necessary hardware are also included. |
| Description_FAB | Die Cast Aluminum Construction Adjustable from 4.5-9 psi for precise fuel pressure adjustments Used in return style systems with a line back to the fuel tank 3/8” NPT Inlet/Outlet Ports 3/8" NPT return port 1/8” NPT Gauge Port Earl's Fuel Pressure Gauge (100187ERL) Earl's 3/8” NPT to -6 AN fittings (AT981666ERL x3) Mounting Bracket Included |