Description
ColorFittings 1/2 Inch NPT Hex Plugs are precision CNC-machined to securely seal unused 1/2″ NPT threaded ports in fuel, oil, coolant, transmission, hydraulic, and air systems. Designed with precision-cut tapered NPT threads, these plugs provide a reliable, leak-free seal for high-pressure and high-temperature performance applications (thread sealant recommended).
Manufactured from aerospace-grade 6061-T6 billet aluminum and finished with ColorFittings’ proprietary polishing and anodizing process, these NPT plugs offer exceptional strength, corrosion resistance, and long-term durability. Compatible with E85, ethanol, race fuel, pump gas, oil, coolant, hydraulic fluid, and compressed air, they’re ideal for street performance, racing, off-road, marine, and custom fabrication projects.
Complete your plumbing system with our AN fittings, Adapters, AN Hose, and AN Fitting Assembly Tools for a clean, professional installation.





