Fuelab 52503-3-L-E EFI Fuel Pressure Regulator 525 Series In-Line

The Fuelab 525 Series Adjustable Fuel Pressure Regulator delivers precision fuel control for electronic fuel injection systems. This in-line design features a large seat valve and accepts both port style and non-port style union fittings without interference, providing maximum installation flexibility.

Key Features:

• Adjustable pressure range suitable for EFI applications up to 125 PSID
• In-line return port configuration allows installation in extremely tight locations
• -6AN inlet and -6AN return port aligned in-line for compact mounting
• Compatible with gasoline, diesel, methanol, and ethanol fuels
• Precision-machined billet aluminum construction with Type II anodizing per MIL-A-8625
• Fine thread pitch adjustment mechanism for precise pressure tuning
• 1/8 NPT gauge port with plug for external pressure monitoring
• 1/8 NPT pressure reference port with barbed fitting included
• Versatile mounting bracket with stainless steel hardware included
• Backed by 2-year limited manufacturer warranty

The 525 Series regulator's unique in-line port design positions the return port aligned with the inlet rather than on the bottom, making it ideal for tight engine bay installations where space is at a premium. Built to exacting standards with military-spec anodizing for superior corrosion resistance and fuel compatibility.