Fuelab 53501-1 Mini EFI Adjustable Fuel Pressure Regulator 25-90 PSI Universal

Vehicle Fitment

• Universal application (ideal for EFI or carbureted systems)

Features

• Compact 535 Mini-Series design, ~50% lighter than 515/525
• Supports stable fuel pressure from 25 to 90 PSI
• Dual -6 AN inlet ports and single -6 AN return port
• Billet aluminum housing with military-grade anodizing
• Fine-thread adjuster for precise fuel pressure tuning
• 1/8" NPT ports for optional gauge or reference fittings
• Compatible with gasoline, diesel, methanol, and ethanol fuels
• Versatile bracket and stainless hardware for various installations
• Weighs only ~5.25 oz - great for tight spaces
• Backed by a limited or lifetime industry-leading warranty

Specifications

• Adjusted pressure range: 25-90 PSI for EFI
• Inlet ports: 2x -6 AN; Return port: 1x -6 AN (bottom)
• Material: Billet aluminum, MIL-A-8625 Type II anodize
• Weight: ~5.25 oz (0.33 lb)
• Dimensions: ≈1.5" D x 2.0" W x 2.25" H
• Operating media: Gasoline, diesel, methanol, ethanol
• Includes 1/8" NPT gauge/reference ports with plugs

Included Components

• 1x Fuelab 53501-1 Mini Fuel Pressure Regulator
• 1x Mounting bracket
• 1x Stainless steel hardware pack
• 3x -6 AN fittings
• Installation instructions

Product Description

The Fuelab 53501-1 Mini Series Adjustable Fuel Pressure Regulator is a precision-machined billet regulator designed for universal use in both EFI and carbureted systems. Offering a 25-90 PSI adjustable range, it provides reliable fuel pressure control in a compact, lightweight housing - ideal for tight engine bay installations. Compatible with multiple fuel types including gasoline, diesel, ethanol, and methanol.

Featuring dual -6 AN inlets and a -6 AN return, this regulator includes 1/8" NPT ports for gauge setup or reference lines. Its fine-thread adjuster allows for easy tuning while the durable magnetic anodizing and stainless mounting hardware ensure longevity. At only ~5.25 oz and measuring ~2" tall, it's perfect for performance builds requiring clean, precise fuel delivery.

Fuelab stands behind this regulator with a limited or lifetime warranty (per vendor), making it a trustworthy choice for tuners, racers, or anyone upgrading their fuel system. Includes bracketry, fittings, and installation instructions for seamless setup.