Fuelab 52503-6-L-E EFI Fuel Pressure Regulator -6AN In-Line Large Seat

The Fuelab 52503-6-L-E is a 525 Series adjustable fuel pressure regulator engineered for EFI applications requiring precise fuel pressure control. This in-line, large seat regulator features a unique design with the return port positioned in-line with the inlet port rather than on the bottom, enabling easy installation in extremely tight engine bay locations where space is at a premium.

Key Features:

• -6AN inlet and -6AN return port configuration with in-line design
• Adjustable pressure range supporting EFI applications 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 MIL-A-8625 military specification
• 1/8 NPT gauge port with plug for external pressure gauge installation
• 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

Designed for performance and flexibility, this regulator delivers reliable fuel pressure management for modern electronic fuel injection systems. Backed by Fuelab's 2-year limited warranty.