1/8npt 1/8npt Male Pipe Union Black

The 1/8 NPT Male Pipe Union Black by REDHORSE PERFORMANCE is an essential hydraulic and pneumatic fitting for custom vehicle fuel, oil, coolant, and air systems. This compact union connector allows technicians and builders to join two 1/8 NPT male-threaded lines without requiring additional adapters, making it ideal for performance engine builds, suspension upgrades, and fabrication work. Whether you're installing a custom fuel rail, integrating a turbo intercooler setup, or routing brake fluid lines through a modified chassis, this fitting delivers the reliability needed in high-pressure environments.

The 1/8 NPT Male Pipe Union features a black-anodized finish that resists corrosion and blends seamlessly into engine bay aesthetics on custom builds. NPT (National Pipe Thread) tapered geometry ensures a leak-free seal when properly applied with thread sealant, eliminating vibration-induced failures common in stock clamps or compression fittings. The straight union design allows for quick disconnection during maintenance or system reconfiguration—a critical advantage when tuning fuel pressure, adjusting oil supply lines to superchargers, or troubleshooting cooling circuits. At just 0.04 lbs with compact dimensions of 3.8 x 1.05 x 4 inches, it integrates cleanly into confined engine compartments without adding bulk.

Professional mechanics, motorsport enthusiasts, and custom fabricators rely on this fitting for precision fuel system plumbing, auxiliary cooling loops, and pneumatic control circuits on street rods, race vehicles, and project cars. It pairs seamlessly with other REDHORSE PERFORMANCE components in modular fuel and coolant systems, ensuring consistent thread pitch across your build. Always apply PTFE thread sealant to NPT connections and verify line pressure ratings before installation—this union handles both positive pressure fuel systems and vacuum-assist lines when properly specified.