#3 Flare Cap Black

The FRAGOLA #3 Flare Cap Black (part number 492903-BL) is an AN-3 aluminum fitting cap designed for high-pressure fluid systems in automotive, motorsports, and industrial applications. This black anodized end cap seals 3 AN male flare fittings, protecting open ports from contamination and fluid loss during assembly, testing, or component storage. Aluminum construction with anodized finish delivers corrosion resistance and a clean, professional appearance on exposed fuel systems, oil lines, and coolant circuits.

The #3 AN flare standard (used across motorsports, custom fabrication, and OEM applications) specifies a 37-degree flare angle and male seating surface. This cap threads onto AN-3 male flare ports with a 0.75-16 thread pitch, creating a moisture-tight seal without requiring additional sealant. Black anodizing provides UV and corrosion resistance, critical in engine bays, fuel cells, and salt-exposure environments. The minimal weight (0.01 lbs) adds negligible mass while maintaining structural integrity under vibration.

This fitting is essential for fabricators building custom fuel systems, hydraulic lines, or coolant circuits where open AN-3 ports must be temporarily sealed. Engine builders, fabrication shops, and motorsports teams rely on quality aluminum caps to prevent debris ingestion and fluid oxidation during assembly phases. The black anodized finish also matches modern engine compartment aesthetics on show vehicles and high-end restorations.

AN flare fittings are industry-standard across motorsports, aviation, and high-performance automotive systems due to their reliability and ease of assembly. FRAGOLA is a recognized manufacturer of AN hose and fitting products, with a strong reputation in the racing and fabrication community. The #3 size accommodates moderate flow applications, common in fuel systems, coolant circuits, and auxiliary hydraulic lines on mid-size performance vehicles and marine engines.