4-Port Fuel Regulator

The 4-Port Fuel Regulator by Magnafuel/Magnaflow Fuel Systems is a precision inline fuel pressure control device engineered for high-performance fuel system applications. Designed for builders and enthusiasts who demand reliable fuel delivery across multiple fuel injection points, this regulator accommodates gasoline, E85, and methanol—making it ideal for naturally aspirated engines, forced-induction platforms, and alternative-fuel conversions. The adjustable 4 to 12 psi range provides the fine-tuned pressure management required for consistent injector spray patterns and optimal engine performance across varying load conditions.

Built from lightweight aluminum and finished in blue/purple anodized coating for corrosion resistance, the 4-Port Fuel Regulator features a 10 AN O-ring inlet and four 6 AN O-ring outlet ports, enabling flexible plumbing configurations for dual-injector rails or split fuel distribution systems. The 1/8 inch NPT port allows gauge or sensor integration for real-time fuel pressure monitoring. This design minimizes pressure drop while distributing flow evenly across all outlet circuits, a critical factor in maintaining consistent fuel delivery on boost or during aggressive acceleration.

Installers and engine tuners benefit most from this regulator's multi-fuel compatibility and modular port configuration. Whether you're building a street performance engine, race car, or alternative-fuel platform, the four 6 AN outlets accommodate independent fuel rails, secondary injector circuits, or damping loops. Its compact 5.3 x 3.2 x 6 inch footprint and 0.95 lb weight make it suitable for tight engine bay layouts. Ensure proper inlet pressure supply and use appropriately rated fuel line fittings for safe, leak-free operation.