4AN to M10x1.0 AN/JIC Flare Inverted

The REDHORSE PERFORMANCE 4AN to M10x1.0 AN/JIC Flare Inverted adapter is a crucial fitting for high-performance fuel systems, hydraulic lines, and custom automotive plumbing applications. It is designed for mechanics and automotive enthusiasts working on turbocharged engines, fuel injection conversions, and competition vehicles, providing a seamless bridge between metric and AN-standard connections.

This inverted flare adapter features a 4AN male port and an M10x1.0 metric female thread, designed to accept standard JIC 37-degree flare couplings. The inverted configuration ensures a reliable seal path, which is critical in pressurized fuel systems where leaks can lead to catastrophic failures. REDHORSE fittings are engineered to withstand peak fuel pressure and vibration, making them a trusted choice for engine builders and tuning shops.

This adapter is particularly beneficial for technicians upgrading fuel supply lines on LS-swapped platforms, turbo Subaru conversions, and European sports car fuel system integrations. It allows for compatibility between metric bungs and AN-standard carburetors or regulators, simplifying complex plumbing layouts in both modern and classic builds.