AN Weld Bung 6AN Female Aluminum

The AN Weld Bung 6AN Female Aluminum from ALLSTAR PERFORMANCE is a precision-engineered port closure solution designed for high-performance fuel, oil, and coolant system installations. This weld-on bung serves as a permanent, leak-free termination point for custom fuel lines and hydraulic circuits in race cars, street rods, and performance engines where reliability under pressure is non-negotiable. The 6AN female o-ring port accepts standard AN fittings and hose adapters, making it an essential component for builders transitioning between different line sizes or eliminating unused ports in complex plumbing layouts.

Constructed from lightweight aluminum and finished in a natural protective coating, this weld bung integrates directly into aluminum fuel tanks, manifolds, or custom fabricated components through direct TIG or MIG welding. The integrated o-ring sealing surface creates a dependable seal when mated with 6AN fittings, eliminating the need for additional sealant tape or thread compounds that can degrade under high temperatures and pressure fluctuations. Aluminum construction keeps overall system weight minimal while maintaining full structural integrity in motorsport and marine applications where every pound matters and corrosion resistance is critical.

Professional engine builders, fabricators, and performance enthusiasts rely on this bung for permanent fuel system modifications, oil cooler line installations, and custom intake manifold porting. Its compact 4 x 0.85 x 7.05-inch footprint allows integration into tight engine bay environments without requiring extensive rework of existing plumbing. Installation requires basic welding skills and proper surface preparation; the aluminum body ensures compatibility with both ferrous and non-ferrous materials in multi-metal fuel system designs. Each unit ships individually, offering the flexibility to purchase only the quantity needed for your specific project build.