#8 Check Valve

The #8 Check Valve by EARLS is a precision one-way fluid control component designed for high-performance hydraulic and fuel system applications. This aluminum check valve allows fluid to flow freely in one direction while blocking reverse flow, making it essential for preventing backflow in fuel injection systems, hydraulic circuits, and pressurized fuel delivery setups. Whether you're building a custom fuel system, upgrading a race engine, or maintaining industrial hydraulic equipment, this check valve provides reliable directional flow control at critical system junctures.

Featuring 8 AN male inlet and outlet connections, this valve is rated for maximum operating pressure of 150 psi, offering robust performance in demanding automotive and industrial environments. The red anodized aluminum construction provides excellent corrosion resistance and durability while minimizing weight—critical for motorsports and aviation applications where every ounce matters. The compact design (2.4 x 1.5 x 3.8 inches) integrates seamlessly into tight engine bay configurations without sacrificing functionality or flow capacity.

This check valve benefits users who demand unidirectional flow control in fuel systems, boost circuits, and hydraulic applications where backpressure or siphoning could compromise system integrity. Installation is straightforward with standard 8 AN male fittings, compatible with EARLS hose, fittings, and adapter systems commonly used in performance automotive builds, custom fuel delivery, and industrial hydraulic setups. The 150 psi rating makes it suitable for naturally aspirated and moderately boosted applications, providing peace of mind in systems where flow reversal prevention is non-negotiable.