Port Plug O-Ring Seal 16an (1pk)

The Port Plug O-Ring Seal 16AN from Earls is a vital fluid-transfer component designed for high-performance fuel, oil, and coolant systems in modified vehicles. This compact seal is essential for preventing leaks at AN port connections, making it a critical component for engine builders and performance enthusiasts working with various automotive systems.

Engineered to maintain integrity under pressure, this O-ring seal is manufactured from premium elastomer compounds that resist degradation from fuel, oil, and coolant across a wide temperature range. The 16AN port designation indicates its compatibility with specific thread pitches and sealing surfaces designed for threaded aluminum fittings commonly used in racing and motorsport applications.

Ideal for engine builders, fabricators, and DIY technicians, this seal is perfect for customizing fuel systems, oil circuits, or cooling loops in turbocharged and supercharged applications. The single-pack design allows for individual replacements or stocking spares, ensuring reliability in critical fuel delivery circuits.