Fuelab 52503-5-L-T Series Adjustable Fuel Pressure Regulator TBI In-Line - 525

The Fuelab 525 Series Adjustable Fuel Pressure Regulator is engineered for high-performance fuel systems requiring precise pressure control in tight engine compartments. This TBI (Throttle Body Injection) model features a large seat design with in-line return port configuration, making it ideal for installations where space is at a premium.

Key Features:

• In-line design with -6AN inlet and -6AN return port for compact installation
• Large seat configuration optimized for TBI applications
• Adjustable pressure range supporting carbureted applications as low as 1 PSID to fuel injected systems up to 125 PSID
• Fine thread pitch adjustment mechanism for precise pressure tuning
• Compatible with gasoline, diesel, methanol, and ethanol fuels
• Billet aluminum construction with Type II anodizing per military spec 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
• Includes versatile mounting bracket with stainless steel hardware

The 525 Series regulator's unique in-line return port placement eliminates the need for bottom-mounted return lines, simplifying installation in confined spaces. Precision-machined from billet aluminum and finished to military specifications, this regulator delivers reliable performance across a wide range of fuel system applications. Backed by Fuelab's 2-year limited warranty.