6an Male Str. to 5/16 Vapor Guard Hose End

The 6 AN Male Str. to 5/16 Vapor Guard Hose End from EARLS is a precision adapter fitting designed for fuel and fluid transfer systems requiring reliable connections between AN6 male swivel ports and 5/16-inch hose barbs. This straight adapter serves performance automotive, marine, and motorsport applications where secure, leak-free connections are essential for high-pressure fuel lines, coolant systems, and vapor recovery circuits. The Vapor Guard designation indicates this fitting incorporates vapor containment design—critical for modern fuel systems operating under pressure while maintaining environmental compliance.

Constructed from durable aluminum and finished in black anodizing, the 6 AN Male Str. to 5/16 Vapor Guard Hose End offers corrosion resistance and weight efficiency without sacrificing structural integrity. The male swivel design allows rotational adjustment during installation, reducing assembly stress on connected components while the straight configuration ensures direct flow path alignment. Aluminum construction minimizes system weight—critical in racing and high-performance builds—while the black anodized coating provides both aesthetic consistency and enhanced durability against fuel exposure and vibration wear.

This adapter is ideal for custom fuel system fabrication, aftermarket fuel pump installations, and OEM fuel line upgrades in vehicles requiring 5/16-inch hose termination with AN6 male connections. The hose barb design securely captures hose without additional clamps, though proper installation with appropriate hose clamps ensures maximum safety and reliability. Professionals and enthusiasts working on performance fuel systems, carbureted applications, and vapor recovery systems will find this EARLS fitting essential for creating clean, compliant connections that withstand vibration, pressure cycling, and extended service intervals.