Weld Bung 1-1/2in NPT Female - Aluminum

The Weld Bung 1-1/2in NPT Female - Aluminum from JOES RACING PRODUCTS is a precision marine fitting engineered for custom boat fuel systems, cooling loops, and hydraulic applications where a sealed, threaded access point is essential. Designed for welding directly into aluminum hulls and engine blocks, this bung serves as a permanent mounting solution that eliminates the need for external fittings that create drag or vibration. Whether you're building a high-performance race boat or upgrading a fishing vessel's fuel delivery system, this weld-in fitting provides the structural integrity and reliability that serious boaters demand.

Constructed from durable aluminum, the Weld Bung 1-1/2in NPT Female features a robust female NPT (National Pipe Thread) port sized for 1-1/2 inch connections, making it compatible with standard marine hose barbs, adapters, and quick-disconnects used in saltwater and freshwater applications. The weld-in design anchors permanently to the hull or manifold, distributing load evenly across the aluminum substrate and preventing the thread pull-out failures common with threaded-only installations. Natural aluminum finish resists corrosion when properly sealed and can be painted or coated to match your vessel's systems, ensuring longevity in harsh marine environments.

This fitting is ideal for anglers and boaters retrofitting fuel tanks, installing auxiliary water systems, or upgrading engine cooling plumbing on aluminum center consoles and offshore hulls. Professional marine fabricators and DIY builders alike rely on weld-in bungs to achieve clean, hidden plumbing runs that reduce clutter and improve aesthetics. Installation requires basic welding skills and an appropriate aluminum TIG or MIG setup; proper surface preparation and post-weld inspection ensure a watertight, leak-free seal that will withstand years of vibration and pressure cycles on the water.