AN to NPT 90 Degree #3 x 1/8

The AN to NPT 90 Degree #3 x 1/8 adapter from Triple X Race Components is a precision fluid line fitting designed to bridge incompatible port types in high-performance fuel, oil, and coolant systems. This 90-degree elbow connector joins a #3 AN (Army-Navy) male port to a 1/8-inch NPT (National Pipe Thread) male port, making it essential for custom fuel system builds, engine conversions, and motorsports applications where standard off-the-shelf layouts don't align. Whether you're fabricating a race engine harness or retrofitting components in a hot rod or off-road vehicle, this compact adapter eliminates the need for multiple fittings or costly custom machining.

Constructed from aluminum and finished in black anodized coating, the AN to NPT 90 Degree #3 x 1/8 provides corrosion resistance and a professional appearance while maintaining lightweight design—critical in race and performance environments. The 90-degree geometry allows directional plumbing in tight engine bays where straight fittings cannot physically fit, and the dual thread standards (AN and NPT) ensure compatibility across OEM and aftermarket component ecosystems. Black anodizing protects against oxidation and UV degradation, while aluminum construction keeps weight down without sacrificing durability under pressure cycling typical of fuel delivery and cooling circuits.

Race engine builders, fabrication shops, and performance enthusiasts rely on the AN to NPT 90 Degree #3 x 1/8 to solve routing challenges in custom intake manifolds, fuel rails, heater cores, and auxiliary cooling lines. Installation requires no special tools—simply thread the AN end into AN-compatible ports and the NPT end into NPT-threaded bosses using appropriate sealant tape or thread sealant for leak-free operation. This single-unit adapter reduces complexity, improves flow path geometry, and eliminates the pressure-drop penalties of multi-fitting daisy chains, making it a must-stock item for any serious performance shop or motorsports build.