Fuelab 54502-4-G Mini Fuel Pressure Regulator Series EFI In-Line - 545

The Fuelab 545 Series Adjustable Mini Fuel Pressure Regulator delivers professional-grade fuel system control in a compact, lightweight design. This in-line EFI regulator is engineered for electronic fuel injection applications, offering precise pressure adjustment up to 125 PSID in a package that weighs 50% less than the standard 515/525 series.

Key Features:

• Compact mini design ideal for space-constrained engine bays
• In-line return port configuration allows installation in extremely tight locations
• Return port positioned in-line with inlet port rather than on the bottom
• Compatible with both port style and non-port style union fittings without interference
• Adjustable pressure range suitable for EFI applications up to 125 PSID
• 50% lighter weight than comparable 515/525 series regulators
• -4AN inlet and outlet ports with integrated return port

The 545 Series distinguishes itself from the 535 Series through its unique in-line return port placement, making it the preferred choice when bottom-mounted return ports are impractical. This regulator accepts standard AN union fittings and provides consistent, reliable fuel pressure regulation for modern fuel-injected engines.