Bypass Vavlve

The AEROMOTIVE Bypass Valve (Part Number 18719) is a fuel system regulator designed for high-performance applications requiring precise pressure control. This 50 psi bypass valve manages excess fuel flow back to the tank, protecting downstream fuel system components from overpressure conditions while maintaining consistent delivery to the engine. The aluminum construction with black anodized finish resists corrosion and integrates seamlessly into Phantom fuel system configurations.

The bypass valve features a 1/8 inch NPT male inlet connection for easy plumbing integration, paired with a 6 AN O-ring quick disconnect fitting for reliable high-flow fuel line attachment. The included 6 AN O-ring plug provides a clean termination point when not in use. The 50 psi crack pressure is calibrated to accommodate fuel pump output while protecting injectors, carburetors, and regulators from excessive backpressure. This specification is typical for street-performance and mild turbocharged applications where fuel demand varies with engine load.

This bypass valve is essential for builders integrating aftermarket fuel systems, upgrading fuel pump capacity, or implementing forced induction where stock regulators prove insufficient. The kit format—including both quick disconnect and plug fittings—eliminates the need to source adapters separately. AEROMOTIVE's reputation for fuel system precision makes this component a trusted choice for custom fuel system design, whether supporting naturally aspirated performance builds or turbocharged powerplants requiring dynamic pressure regulation.

SKU AFS18719 is compatible with Phantom fuel system platforms and applications demanding modular, quality-engineered fuel delivery control. Compact dimensions (4.75 x 2.35 x 6.75 inches) permit installation in engine bays with limited space. The bypass valve is a critical failsafe component—improper or missing bypass regulation can result in fuel system damage or lean running conditions under peak demand, making correct installation essential for long-term reliability.