6AN 90Deg Male Adapter to 1/8in NPT Male Clear

The 6AN 90Deg Male Adapter to 1/8in NPT Male Clear from REDHORSE PERFORMANCE is an essential fitting for custom automotive fluid systems, fuel delivery, coolant lines, and brake applications. This adapter bridges two industry-standard connection types—the AN (Army-Navy) 6 size and NPT (National Pipe Thread) 1/8 inch—making it invaluable for builders integrating aftermarket components with OEM or custom manifolds. Whether you're upgrading a fuel system on a performance engine swap, installing a custom boost gauge, or adapting transmission cooler lines, this fitting solves common thread-size mismatches that arise in modern vehicle modifications.

Constructed from durable materials with a clear finish, this 90-degree male-to-male adapter handles high-pressure applications while remaining corrosion-resistant and visible for leak inspection. The 90-degree angle geometry allows tight packaging in engine bays where space is constrained, and the dual male threading ensures secure connections on both ends without requiring additional reducer fittings. REDHORSE PERFORMANCE fittings are engineered to SAE standards, delivering reliable performance under the vibration, temperature fluctuations, and pressure cycling that modern turbocharged and supercharged engines demand.

Mechanics and fabricators benefit most from this adapter when retrofitting late-model engines into classic platforms or when OEM sensor bosses and gauge sending units use NPT threads while AN hose systems are preferred for reliability and ease of service. Installation is straightforward—apply thread sealant to the NPT male end and tighten securely into the receiving port, then attach your 6AN hose or fitting to the opposite end. This compact fitting (weighing just 0.065 lbs) integrates seamlessly into fuel rails, coolant manifolds, transmission lines, and boost control systems across domestic and import platforms.