6AN 3/8NPT to 2AN 1/8NPT Male Female Reducer

The 6AN 3/8NPT to 2AN 1/8NPT Male Female Reducer by Redhorse Performance is a precision hydraulic adapter designed for custom fuel, coolant, and brake line routing in modified vehicles. This stepped reducer bridges two different AN (JIC) port sizes while accommodating NPT (National Pipe Thread) fittings on either end, making it essential for engine bay modifications where space constraints or existing component layouts demand flexible plumbing solutions.

Machined from anodized aluminum alloy, this reducer is designed to resist corrosion and withstand the demands of automotive applications. The male-to-female configuration allows seamless integration into existing line assemblies without additional adapters or manifold modifications. The 6AN inlet accommodates larger flow capacity hoses common in fuel rails and turbo cooling circuits, while the 2AN outlet steps down for precision metering or connection to smaller-diameter components.

Turbocharged and supercharged engine builders, fuel system tuners, and fabricators working on custom configurations will benefit from this reducer's ability to eliminate the need for multiple fittings and reduce potential leak points. Proper thread-locking compound and careful torque application during installation prevent vibration-induced loosening and ensure leak-free operation under boost pressure or high-temperature conditions.