16an Male to 20an ORB Fitting

The 16AN Male to 20AN ORB Fitting by AEROMOTIVE is an essential adapter for fuel system builders and performance engine builders who need flexible port sizing between fuel rails, carburetors, and fuel pressure regulators. This fitting bridges a common size gap in high-flow fuel delivery systems, allowing you to connect -16 hose or hard-line assemblies to components with 20AN ORB (O-Ring Boss) female ports.

Whether you're building a custom EFI fuel system, upgrading a carbureted engine, or fabricating a standalone fuel delivery platform, this adapter ensures clean, leak-free connections across different circuit components. AEROMOTIVE's fitting features precision-machined anodized aluminum construction for durability and quick visual identification in complex fuel systems.

This fitting is ideal for enthusiasts running EFI conversions, turbocharged street cars, drag racing platforms, and fuel-injected restorations where OEM fuel delivery doesn't suffice. The male 16AN end accepts standard -16 AN hose fittings or hard-line adapters, while the 20AN ORB port seats against the target component's O-ring groove with zero-clearance interference, eliminating potential weeping or pressure loss under boost or high-volume pump demand.