Fuelab 52503-2-S-G EFI Fuel Pressure Regulator -6AN Inline

The Fuelab 525 Series Adjustable Fuel Pressure Regulator is engineered for high-performance EFI applications where precision fuel control and compact installation are critical. This inline-style 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 bay locations where traditional regulators won't fit.

Key Features:

• Adjustable pressure range up to 125 PSID for fuel injected applications
• -6AN inlet and -6AN return ports configured inline for space-saving installation
• Fine thread pitch adjustment mechanism for precise pressure tuning
• Compatible with gasoline, diesel, methanol, and ethanol fuels
• Billet aluminum construction with Type II military-spec 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
• Versatile mounting bracket with stainless steel hardware included
• Backed by 2-year limited manufacturer warranty

The 525 Series regulator combines professional-grade construction with practical design features that simplify installation and tuning. The precision-machined billet aluminum body ensures durability and consistent performance across a wide range of operating conditions, making it an ideal choice for street performance, racing, and custom fuel system builds.