Fuel Filter End Cap -10

The Fuel Filter End Cap -10 is a precision fuel system adapter designed for builders and mechanics working with high-performance fuel delivery systems. This fitting serves as a critical junction point in custom fuel lines, connecting filter housings or fuel rails to downstream components with a secure, leak-free seal.

Engineered with an integrated O-ring face seal, the Fuel Filter End Cap -10 AN provides superior vibration resistance and prevents fuel weeping at the connection point—a common issue in custom fuel systems where standard hose clamps fall short. The -10 AN male thread (5/8-18 UNF standard) is industry-standard for high-flow fuel applications, while the 1-13/16-20 inch male O-ring port accommodates larger filter canister threads, making this adapter essential for transitioning between different fuel system architectures.

Serious fuel system builders—from street rod enthusiasts to road racing competitors—rely on this type of adapter for guaranteed fuel integrity under demanding conditions. Compact and lightweight, it integrates seamlessly into tight engine bays without adding bulk or complexity to your fuel line routing.