Fuelab 52503-6-L-L Adjustable Fuel Pressure Regulator 525 Series In-Line CARB

The Fuelab 525 Series Adjustable Fuel Pressure Regulator is engineered for high-performance fuel systems requiring precise pressure control in compact installations. This CARB-compliant in-line regulator features a large seat design and accepts both port-style and non-port-style union fittings without interference, providing exceptional installation flexibility.

Key Features:

• In-line configuration with -6AN inlet and -6AN return port for easy installation in tight spaces
• Large seat design for increased flow capacity
• Adjustable pressure range suitable for carbureted and fuel injected applications (1-125 PSID)
• Precision fine thread adjustment mechanism for accurate pressure tuning
• Billet aluminum construction with Type II military-spec 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
• Versatile mounting bracket with stainless steel hardware
• Backed by 2-year limited manufacturer warranty

The return port is positioned in-line with the inlet port rather than on the bottom, making this regulator ideal for installations where space is limited. The precision adjustment mechanism allows fine-tuning of fuel pressure to match your specific application requirements.