8AN ML to 3/8in NPT ML 1/8in NPT Hex Black

The 8AN ML to 3/8in NPT ML 1/8in NPT Hex Black adapter from REDHORSE PERFORMANCE is a precision fluid line connector designed for high-performance fuel, coolant, and hydraulic system applications in custom automotive builds. This adapter allows you to transition from 8AN male lines to both 3/8-inch NPT male and 1/8-inch NPT male ports in a compact unit, making it essential for engine bay plumbing in turbocharged, supercharged, and fuel-injected vehicles.

Constructed from aluminum and finished in corrosion-resistant black anodize, this hex-body adapter resists vibration-induced loosening and provides reliable sealing performance under pressure cycling. The AN (Army-Navy) JIC flare standard on the input ensures compatibility with modern -8 braided stainless steel hose lines, while the NPT male outputs allow for connections to factory and aftermarket sensors, regulators, and distribution blocks.

This adapter is particularly beneficial for race-car fuel systems, LS engine swaps, and fuel cell plumbing, where precise fluid routing and leak-free connections are critical. Its hex geometry allows for full tool engagement, preventing rounding damage during installation and maintenance, ensuring that you can achieve optimal performance in your automotive applications.