AN To NPT 90 Degree -8 x 1/4in

The AN to NPT 90 Degree -8 x 1/4in adapter from Allstar Performance is a precision fluid-transfer fitting designed for high-performance automotive and hydraulic systems where space or clearance demands an angled connection. This 90-degree elbow adapter bridges AN (Army-Navy) and NPT (National Pipe Thread) port standards, making it indispensable for fuel systems, brake lines, power steering circuits, and custom plumbing installations where a straight fitting cannot be used. The compact design and reliable construction ensure secure, leak-free connections in demanding under-hood environments.

Constructed from aluminum and finished in black anodize, this fitting combines corrosion resistance with lightweight durability—critical for racing and street performance applications. The -8 AN male port accepts standard -8 hose with AN fittings, while the 1/4-inch NPT male port threads directly into NPT-tapped ports on engine blocks, manifolds, or aftermarket components. The 90-degree geometry redirects flow efficiently, reducing turbulence and system stress compared to using multiple adapters. Black anodized aluminum provides aesthetic consistency with modern engine bay builds while protecting against oxidation and thermal cycling.

This adapter suits custom fuel system builders, engine swap specialists, and performance technicians installing non-OEM plumbing configurations. It is commonly used in supercharger intercooler circuits, fuel pressure regulator lines, and vacuum brake booster conversions where original routing ports are inaccessible. Installation requires NPT sealant or thread tape on the male NPT side; the AN connection uses standard reusable or disposable AN seals. Verify port sizes and thread pitch on your application before ordering to ensure compatibility with existing hose and manifold ports.