12-803BP Holley By-Pass Regulator
12-803BP Holley By-Pass Regulator
Available in stock (116)
Couldn't load pickup availability
12-803BP Holley By-Pass Regulator
Enhance your vehicle's fuel system performance with the 12-803BP Holley By-Pass Regulator. This high-quality performance fuel pressure regulator is designed to ensure your engine receives the optimal fuel pressure it needs for efficient operation.
Key Features:
- Precision Fuel Pressure Adjustment: Tailors fuel pressure specifically for various carburetors, avoiding flooding or drivability issues.
- Quieter Operation: Designed for systems with a return line back to the fuel tank, reducing noise levels from the fuel pump.
- Durable Construction: Made from high-quality aluminum with a natural silver finish for added durability and long-lasting performance.
- Easy Installation: Comes with mounting brackets for straightforward setup.
- Limited Warranty: Backed by a 90-day warranty for peace of mind.
Specifications:
- Return Port Size: 3/8 Inch NPT
- Fuel Type: Gasoline
- Pressure Range: 4.5 to 9 PSI
- Regulator Location: Inline
- Inlet Attachment: Female Threads, Single Inlet Size: 3/8 Inch NPT
- Outlet Attachment: Female Threads, Single Outlet Size: 3/8 Inch NPT
- Includes Fittings: No
- Gauge Port: No
Upgrade your fuel system with the 12-803BP Holley By-Pass Regulator and experience improved performance and reliability on the road. Perfect for enthusiasts looking to optimize their carbureted engines.
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

