Fuel Filter/Bypass Style Regultor 58-PSI w/6an

The Holley Fuel Filter/Bypass Style Regulator 58-PSI w/6AN (model 162-591) is a compact, all-in-one fuel management solution engineered for EFI and carbureted engine builds that demand precise pressure control and clean fuel delivery. This integrated unit combines fuel filtration and pressure regulation into a single component, eliminating the need for separate devices and simplifying underhood packaging. Whether you're building a street rod, performance truck, or high-output engine, this regulator ensures consistent fuel pressure while protecting your fuel system from contaminants.

Rated at 58 PSI, this bypass-style regulator maintains rock-solid fuel pressure across varying engine loads and RPM ranges, making it ideal for carbureted applications and naturally aspirated EFI engines. The integrated 5-micron stainless steel filter removes particles and debris before they reach your fuel system, extending the life of injectors, carburetors, and fuel pumps. The regulator features 6 AN male connections for inlet, outlet, and return lines, providing flexible routing options for custom fuel system layouts. Its bypass design allows excess fuel to return to the tank, preventing pressure spikes and system damage during idle and low-demand conditions.

This unit is ideal for enthusiasts building fuel systems on street rods, muscle cars, classic trucks, and performance vehicles where space and integration matter. The compact 3.8 x 3.8 x 6-inch footprint and lightweight 0.65 lb design allow easy installation in tight engine bays. Compatible with gasoline fuel systems, the stainless steel construction resists corrosion and ensures longevity in both stock and heavily modified applications. Proper installation requires AN-sized fuel line adapters and careful pressure tuning to match your carburetor or EFI system's specifications.