#6 Female x #4 Male Swivel Reducer Black

The #6 Female x #4 Male Swivel Reducer Black from FRAGOLA is a versatile adapter fitting designed for connecting AN-rated hydraulic and pneumatic lines of different sizes in high-performance applications. This reducer is essential for bridging #6 AN female swivel ports to #4 AN male connections, making it ideal for custom fuel systems, coolant lines, and pressure-line applications where size transitions are necessary.

Constructed from durable aluminum with a black anodized finish, this reducer offers excellent corrosion resistance and a professional appearance in engine bays and under-car installations. The swivel female end allows for rotational adjustment during assembly, which reduces installation stress on connected hoses and fittings, thereby extending component life and preventing seal damage. The straight design ensures minimal flow restrictions while maintaining structural integrity under pressure.

This adapter is particularly beneficial for customers converting older fuel systems to modern AN standards or reconfiguring factory hydraulic circuits. Its reliable step-down solution is perfect for professional and enthusiast technicians alike, whether building a race engine fuel system or custom cooling loop.