Fuelab 52503-6-S-G EFI Fuel Pressure Regulator -6AN Inlet/Return

The Fuelab 525 Series Adjustable Fuel Pressure Regulator is engineered for high-performance EFI applications requiring precise fuel pressure control. This in-line regulator features a unique design with the return port positioned in-line with the inlet port rather than on the bottom, enabling installation in extremely tight engine compartments where space is limited.

Key Features:

• -6AN inlet and -6AN return ports in-line configuration for compact installation
• Adjustable pressure range supporting EFI applications up to 125 PSID
• Fine thread pitch adjustment for precise pressure tuning
• CNC-machined billet aluminum construction with military-spec Type II anodizing (MIL-A-8625)
• Compatible with gasoline, diesel, methanol, and ethanol fuels
• 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 with stainless steel hardware

The 525 Series regulator combines precision engineering with flexible installation options, making it ideal for modern EFI systems where consistent fuel pressure is critical for optimal engine performance. Backed by Fuelab's 2-year limited warranty.