AN Expander #3 Female x #4 Male

The AN Expander #3 Female x #4 Male from Triple X Race Components is a precision adapter fitting designed for use in fuel systems and hydraulic line routing. This expander allows builders to transition between two different AN port sizes, making it easier to adapt existing components without the need for complete line replacements. It is particularly useful for those upgrading carbureted engines to EFI or optimizing fuel delivery in modified vehicles.

Constructed from lightweight aluminum with a hard-anodized black finish, this expander provides excellent corrosion resistance while maintaining the low weight critical for racing applications. The AN fittings utilize a 37-degree JIC flare seat, ensuring a reliable seal across all AN-sized hose assemblies without the need for additional sealants. The #3 female inlet is compatible with standard -3 AN hoses, while the #4 male outlet connects to -4 AN systems.

Professional race shops, engine builders, and serious automotive enthusiasts can rely on the consistent quality and precise machining tolerances of Triple X Race Components fittings. This expander is ideal for those looking to bridge size mismatches in their fuel and hydraulic systems, ensuring smooth and predictable flow transitions at the junction point.