Single Male Banjo Adaptr Bolt M12x1.0 to -4AN

The Single Male Banjo Adapter Bolt M12x1.0 to -4AN from VIBRANT PERFORMANCE is a precision hydraulic fitting designed for builders and mechanics who demand clean, leak-free connections in custom fuel and oil line applications. This adapter bridges the gap between metric ISO banjo bolt ports and AN (Army-Navy) standard hose ends, making it essential for swapped engines and fuel system upgrades where OEM fittings won't accommodate aftermarket components.

Manufactured to strict tolerances, the M12x1.0 to -4AN adapter allows you to thread standard AN hose fittings directly into metric boss locations. The -4 designation represents 1/4-inch nominal hose compatibility, a common flow rate for fuel delivery and oil circulation circuits in street and race applications. VIBRANT PERFORMANCE engineers these adapters from aluminum or zinc-plated steel, ensuring corrosion resistance and lightweight construction without sacrificing structural integrity.

This fitting is ideal for LS engine swaps and JDM applications, providing a reliable solution for integrating aftermarket components into custom builds. Proper installation—with crush washers on the banjo bolt sealing surfaces and thread-sealant tape on AN connections—guarantees a pressure-tight seal that holds across thermal cycles and vibration.