Earl's Performance Aluminum AN Flare Plugs

Earl's Performance Aluminum AN Flare Plugs are precision-engineered components designed to cleanly and reliably seal unused AN flare ports in performance plumbing systems. Trusted by professional engine builders, race teams, and motorsports enthusiasts worldwide, these plugs are built to the exacting standards that demanding fuel, oil, coolant, and hydraulic circuit applications require.

Key Features:

• Precision-machined aluminum construction — manufactured to tight tolerances for accurate thread engagement and a secure, leak-free seal on AN flare ports
• Anodized finish — surface treatment provides corrosion and wear resistance, keeping your plumbing installation looking clean and professional
• AN (Army-Navy) flare standard compliant — engineered for consistent, reliable fitment with standard AN plumbing systems used throughout motorsports and high-performance applications
• Broad application compatibility — suited for capping unused ports in fuel systems, oil lines, coolant circuits, and hydraulic plumbing across a wide variety of builds
• Made in the USA — backed by Earl's decades of motorsports-proven engineering and craftsmanship

Whether you're completing a custom plumbing build, blocking off unused ports during system testing, or finishing a professional performance installation, Earl's Aluminum AN Flare Plugs are an essential component wherever AN fittings are in use. Multiple variants are available — select the configuration that best suits your application.