Fuelab 8AN High Flow One Way Check Valve 350 GPH

Fuelab High Flow 8AN One-Way Check Valve | 350GPH Flow Capacity | Fuel System Component

Overview

The Fuelab High Flow 8AN One-Way Check Valve is a precision-engineered fuel system component designed to ensure unidirectional fuel flow with minimal restriction. Ideal for Subaru enthusiasts upgrading their fuel delivery systems or building high-performance setups, this valve prevents backflow and maintains consistent fuel pressure, critical for reliable engine operation under demanding conditions.

Constructed from billet aluminum with fluorosilicone seats and seals, this check valve combines durability with high flow efficiency. Its rebuildable design reflects Fuelab’s commitment to quality and serviceability, allowing enthusiasts to maintain peak performance without frequent replacements. The 8AN male inlet and outlet fittings provide a secure, leak-free connection compatible with common fuel line sizes used in Subaru WRX, STI, BRZ, and other performance builds.

With a maximum flow capacity of 350 gallons per hour and a pressure rating up to 200 PSI, this valve supports high-demand fuel systems, making it a reliable choice for turbocharged and naturally aspirated Subaru platforms. Its compact size and robust construction ensure it integrates seamlessly into fuel setups, enhancing system reliability and fuel delivery consistency for spirited driving and track use.

Features & Specifications

This Fuelab High Flow 8AN One-Way Check Valve is engineered for universal fitment and features a 350GPH flow capacity. Constructed from billet aluminum with fluorosilicone seats and seals, it delivers reliable one-way fuel flow control for Subaru enthusiasts seeking durable and efficient fuel system components.

• Brand: Fuelab
• Product: High Flow 8AN One-Way Check Valve
• Part Number: 71703
• Fitment: Universal
• Material: Billet Aluminum
• Finish: Natural Aluminum
• Construction: Rebuildable
• Origin: Not specified
• Flow Capacity: 350 GPH
• Max Pressure: 200 PSIG
• Fitting Size: 8AN Male Inlet/Outlet
• Seal Material: Fluorosilicone
• Poppet Size: 11/16 inch

Key Benefits

• Performance: Maintains consistent fuel flow and pressure to support high-demand Subaru fuel systems.
• Durability: Billet aluminum body and fluorosilicone seals resist wear and chemical degradation for long service life.
• Fitment: Universal 8AN fittings ensure compatibility with a wide range of Subaru fuel setups and aftermarket components.
• Serviceability: Rebuildable design allows for maintenance and extended use, reducing replacement costs.
• Reliability: Prevents fuel backflow, protecting fuel pumps and maintaining system integrity during dynamic driving conditions.

What's Included

• 1× Fuelab High Flow 8AN One-Way Check Valve
• Rebuild kit components (seals and seats) included
• Installation instructions

Installation & Compatibility

Installation of the Fuelab High Flow 8AN One-Way Check Valve is straightforward for enthusiasts familiar with fuel system plumbing. It requires standard 8AN fuel line fittings and basic hand tools. The rebuildable nature allows for easy servicing without specialized equipment. This valve is universally compatible but verify fitment with your specific Subaru model and fuel system configuration before installation. No tuning is required, but proper fuel line routing and secure connections are essential for optimal performance.

• Professional Installation: Recommended for those unfamiliar with fuel system components
• Modifications Required: None, fits standard 8AN fuel lines
• Verify Compatibility: Confirm fitment for your specific Subaru platform and fuel system setup

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