12AN to 12AN O-Ring Port Adapter Black Male Male

The 12AN to 12AN O-Ring Port Adapter Black Male Male from Redhorse Performance is an essential component for high-performance fuel system plumbing, custom engine builds, and turbocharger installations. This male-to-male adapter connects two -12 AN hose lines or ports with a secure, leak-free interface, eliminating the need for additional fittings or bulky manifolds. Whether you're building a standalone fuel system, integrating a fuel cooler, or routing remote-mounted fuel filters, this adapter provides a direct, compact solution that saves space in tight engine bays and reduces pressure drop across the fuel circuit.

Engineered from premium materials with a black anodized finish, the 12AN O-ring port adapter utilizes redundant O-ring sealing technology to prevent fuel weeping at connection points—critical in high-flow applications where vibration and thermal cycling stress conventional crush washers. The male-to-male configuration allows direct connection between two female-port components, such as fuel filter heads, regulators, or distribution blocks, without requiring intermediate adapters. The compact 2.75-inch length and lightweight 0.15 lb design minimize installation complexity while maintaining full -12 AN flow capacity, ensuring your fuel delivery system sustains peak volumetric efficiency during sustained acceleration and boost events.

This adapter is ideal for fabricators, professional tuners, and enthusiasts building custom fuel systems for turbocharged, supercharged, or naturally aspirated performance engines. It integrates seamlessly into modular fuel system designs where standardized -12 AN fittings are the primary connection method. Mechanics working on fuel cell installations, carbureted conversions, or EFI retrofits will appreciate the straightforward male-to-male interface that simplifies plumbing layouts and reduces leak points. Redhorse Performance's reputation for precision machining ensures repeatable fit and long-term reliability under sustained pressure and temperature cycling.