8AN Male Flare to M10x1.0 Inverted Adapter

The 8AN Male Flare to M10x1.0 Inverted Adapter from REDHORSE PERFORMANCE is a precision hydraulic fitting engineered for custom fuel, oil, and coolant line fabrication on high-performance vehicles. This adapter bridges AN (Army-Navy) standard flare connections to metric M10x1.0 inverted threads, making it essential for builders integrating imported components, fuel injection systems, or European-sourced cooling circuits into modified engines. Whether you're upgrading a turbocharged build, installing a secondary fuel system, or routing high-pressure lines through tight engine bays, this adapter eliminates fitment gaps and maintains system integrity under pressure.

Built to REDHORSE PERFORMANCE's exacting standards, the adapter features a male 8AN flare end compatible with JIC 37° flare seat fittings and an inverted M10x1.0 metric port designed for metric banjo bolts or direct compression fitting attachment. The 8AN specification handles flows and pressures common in fuel rails, transmission cooler lines, and oil supply systems on supercharged and naturally aspirated builds alike. Inverted thread geometry seats from the outside, allowing clean integration into tight manifold configurations and block-mounted adapters where traditional straight threads would interfere. Compact dimensions (2.8 x 1.1 x 3.75 inches) and light weight (0.055 lbs) ensure minimal packaging impact in engineered engine bay layouts.

Mechanics, engine builders, and serious enthusiasts rely on this adapter when custom-fab work demands cross-platform compatibility or when OEM metric ports need retrofit to AN-standard hose and fittings. It's indispensable for turbo kit installations, catch can plumbing, cooler line upgrades, and fuel system migrations on domestic and import platforms. Verify inverted thread depth and seat angle compatibility with your specific component before assembly; quality adapters like this one are only effective when properly mated to matching female connections rated for sustained pressure cycling.