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Air and Fuel› Fuel Pumps, Regulators and Components
Holley
Regulators: return style fuel pressure regulator; 7 psi; adjustable; 3/8 inch NPT inlet outlet
SKU: H00E 12-803BP
Moderate — 2–4 hours
Overview
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Part #: 12-803BP
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 12-803BP fuel pressure regulator features 3/8" NPT in/out ports and a 3/8" NPT return port.
Features:
- Adjustable fuel regulation from 4-1/2 to 9 psi
- Preset to 7psi
- 3/8" NPT ports (1 in, 1 out, 1 bypass or return)
- Used in systems with a return line back to the fuel tank
- Quieter fuel pump operation
- Designed only for carburetor use
- Polished finish
- Mounting bracket included
Street/Strip Carbureted Applications Two Port Adjustable from 4.5 to 9 PSI
Vehicle Symptoms
- Engine runs rich or floods at idle
- Hard starting when hot or cold
- Fuel pressure gauge fluctuates or reads too high
- Black smoke from exhaust under load
- Poor fuel economy and rough idling
Relevant Conversations
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Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | Holley |
| Part Number | H00E 12-803BP |
| Weight | 0.6 lb |
Videos
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