Holley 12-847 Dominator Billet Bypass Fuel Pressure Regulator 4.5-9 PSI

The Holley Dominator Billet Bypass Fuel Pressure Regulator delivers precise fuel pressure control for carbureted engines with return-style fuel systems. Designed specifically for use with electric fuel pumps, this regulator maintains consistent fuel delivery while protecting your carburetor from excessive pressure.

Key Features:

• Adjustable pressure range from 4.5 to 9 PSI for precise tuning
• Bypass design requires return line back to fuel tank
• -10 AN O-ring inlet and outlet ports for high-flow applications
• -8 AN O-ring return port for efficient fuel circulation
• 1/8" NPT gauge port for pressure monitoring
• Billet aluminum construction with black anodized base and clear anodized top
• Includes mounting bracket for easy installation

Engineered for compatibility with Holley Dominator in-line fuel pumps and other high-pressure electric pumps, this regulator is ideal for high-performance carbureted applications requiring precise fuel pressure management. The rugged billet aluminum housing ensures durability while the dual-finish anodizing provides both corrosion resistance and an attractive appearance under the hood.