NPT Female Weld Bung 3/4in-14 Steel

The ALLSTAR PERFORMANCE NPT Female Weld Bung 3/4in-14 Steel (ALL50754) is a heavy-duty weld-on bung designed for custom fuel system fabrication and engine bay plumbing applications. Constructed from solid steel with a natural finish, this weld bung provides a reliable NPT female threaded port that can be permanently integrated into tanks, manifolds, fuel cells, and custom headers where a flush-mounted, threaded connection is required.

The 3/4-inch NPT (National Pipe Thread) female configuration accepts standard 3/4 NPT male fittings, hose adapters, and sensors commonly used in fuel delivery, cooling systems, and custom intake manifold builds. The weld-on design eliminates the need for threaded bosses or complex mounting brackets—the bung is simply positioned and welded directly to the component surface, creating a permanent, leak-free assembly. Steel construction ensures durability in high-vibration engine compartments and resistance to fuel and coolant exposure typical in racing and high-performance applications.

This bung is ideal for fabricators, engine builders, and custom fabrication shops building fuel systems, intake manifolds, or auxiliary cooling lines. It's commonly used in street rod construction, racing engine builds, and any application requiring a custom-mounted NPT port. ALLSTAR Performance is a recognized supplier of weld-on fittings and fabrication components trusted in the automotive performance and racing community.

Whether you're plumbing a custom fuel cell, adding a fuel pressure sensor port, or integrating auxiliary cooling, the NPT Female Weld Bung 3/4in-14 delivers the threaded connection point your system needs without complex adapters. Each unit ships individually and is ready to weld.