Fuelab 52503-3-L-L 525 Series Adjustable Fuel Pressure Regulator CARB In-Line

The Fuelab 525 Series Adjustable Fuel Pressure Regulator is engineered for performance and versatility in demanding fuel systems. This CARB-compliant in-line regulator features a large seat design and accepts both port-style and non-port-style union fittings without interference. Supporting carbureted applications as low as 1 PSID to fuel injected systems up to 125 PSID, this regulator delivers precise fuel pressure control across a wide range of applications.

Key Features:

• In-line design with return port aligned with inlet port for easy installation in tight spaces
• -6AN inlet and -6AN return port configuration
• 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 gauge monitoring
• 1/8 NPT pressure reference port with barbed fitting included
• Versatile mounting bracket with stainless steel hardware
• CARB compliant for street legal applications
• Backed by 2-year limited warranty

The unique in-line return port configuration sets the 525 Series apart, making it ideal for installations where space is limited. The quality billet aluminum construction and military-spec anodizing ensure durability and corrosion resistance in harsh operating environments.