Fuelab Fuel Pressure Regulator Kit

Fuelab Adjustable Mini Fuel Pressure Regulator Kit | 25-90 psi Adjustable Range | Universal EFI Fuel Pressure Regulator

Overview

The Fuelab Adjustable Mini Fuel Pressure Regulator Kit is a versatile solution designed to provide precise fuel pressure control for a wide range of EFI applications. Ideal for Subaru enthusiasts and tuners who require reliable and adjustable fuel pressure management, this compact regulator supports gasoline, diesel, methanol, and ethanol fuels. Its universal fitment makes it suitable for custom fuel systems or upgrades where space is limited.

Engineered with a billet aluminum body anodized to military specifications (MIL-A-8625, Type II), this regulator balances lightweight design with durability. The fine thread pitch allows for accurate pressure adjustments within a 25-90 psi range, ensuring consistent fuel delivery tailored to your engine’s needs. Dual -6AN inlet ports and a single -6AN return port provide flexible plumbing options, while the included mounting bracket and stainless steel hardware simplify installation.

For Subaru owners focused on tuning and performance, maintaining stable fuel pressure is critical to maximizing power and reliability. This Fuelab regulator’s compact size and precise adjustability make it an excellent choice for WRX, STI, BRZ, and other platform builds where fuel system control is paramount. The addition of gauge and pressure reference ports further enhances monitoring capabilities, supporting fine-tuned setups and safe operation under demanding conditions.

Features & Specifications

This Fuelab Adjustable Mini Fuel Pressure Regulator Kit is engineered for universal EFI applications and features a 25-90 psi adjustable pressure range. Constructed from billet aluminum with a military-grade anodized finish, it delivers lightweight durability and precise fuel pressure control for Subaru enthusiasts seeking reliable and tunable fuel system management.

• Brand: Fuelab
• Product: Adjustable Mini Fuel Pressure Regulator Kit
• Part Number: 53501-1K
• Fitment: Universal
• Material: Billet Aluminum
• Finish: Anodized per MIL-A-8625, Type II
• Construction: CNC Machined
• Origin: Not specified
• Pressure Range: 25-90 psi adjustable
• Inlet Ports: Two -6AN
• Return Port: One -6AN
• Fuel Compatibility: Gasoline, Diesel, Methanol, Ethanol
• Gauge Port: 1/8 inch NPT with plug
• Pressure Reference Port: 1/8 inch NPT with barbed fitting
• Mounting: Versatile bracket with stainless steel hardware included
• Weight: 50% lighter than Fuelab 515/525 Series
• Warranty: Limited lifetime warranty

Key Benefits

• Performance: Precise fuel pressure adjustment ensures consistent fuel delivery for optimal engine tuning and power output.
• Durability: Billet aluminum construction with military-grade anodizing resists corrosion and wear in demanding environments.
• Fitment: Compact, lightweight design fits easily in tight engine bays common in Subaru platforms without sacrificing functionality.
• Compatibility: Supports multiple fuel types including gasoline, diesel, methanol, and ethanol, making it versatile for various builds.
• Adjustability: Fine thread pitch allows for smooth and accurate pressure tuning between 25 and 90 psi.
• Monitoring: Integrated gauge and pressure reference ports enable easy installation of external fuel pressure gauges for real-time monitoring.

What's Included

• 1× Fuelab Adjustable Mini Fuel Pressure Regulator
• 1× Versatile mounting bracket
• Stainless steel mounting hardware
• 1× Plug for gauge port
• Installation instructions

Installation & Compatibility

This Fuelab Adjustable Mini Fuel Pressure Regulator Kit is designed for straightforward installation in limited space areas, making it suitable for DIY enthusiasts with moderate mechanical experience. The included mounting bracket and hardware simplify securing the regulator in your engine bay. No special tools beyond standard hand tools are typically required. Because this is a universal regulator, verify compatibility with your specific Subaru model and fuel system setup before installation. Tuning adjustments to fuel pressure should be performed carefully to match your engine’s requirements and fuel pump capabilities.

• Professional Installation: Recommended for first-time installers or complex fuel system setups
• Modifications Required: None, but custom fuel line routing may be necessary
• Verify Compatibility: Confirm fitment and fuel system compatibility for your Subaru platform and build

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