Fuelab 52503-4-L-E Fuel Pressure Regulator EFI Adjustable In-Line -6AN

The Fuelab 525 Series Adjustable Fuel Pressure Regulator is engineered for high-performance EFI applications requiring precise fuel delivery control. This in-line model features a large seat design and offers adjustable pressure regulation up to 125 PSID, making it ideal for demanding fuel-injected engines.

Key Features:

• In-line configuration with -6AN inlet and -6AN return port for space-saving installation in tight engine compartments
• Fine thread pitch adjustment for precise pressure tuning
• Compatible with gasoline, diesel, methanol, and ethanol fuels
• Billet aluminum construction with military-spec Type II anodizing (MIL-A-8625)
• 1/8 NPT gauge port with plug for external pressure monitoring
• 1/8 NPT pressure reference port with barbed fitting included
• Accepts both port style and non-port style union fittings without interference
• Includes versatile mounting bracket and stainless steel hardware

The 525 Series design positions the return port in-line with the inlet rather than on the bottom, allowing for easy installation in cramped engine bays where space is at a premium. Backed by Fuelab's 2-year limited warranty, this regulator delivers professional-grade fuel system control for street and racing applications.