411 Works Aluminum NPT Female Weld Bung | 6061-T6 Aluminum | Precision Weld Bung Overview The 411 Works Aluminum NPT Female Weld Bung is a precision-machined component designed for custom fabrication projects requiring reliable and durable weld bungs. Crafted from high-quality 6061-T6 aluminum, this weld bung provides a corrosion-resistant and lightweight solution ideal for fabricators and Subaru enthusiasts who demand exacting standards in their build components. While not vehicle-specific, its SAE specification design makes it a versatile choice for various applications, including custom exhaust, turbo, and fluid system setups. Manufactured in-house on a HAAS CNC lathe using premium North American materials, 411 Works ensures each weld bung meets strict quality and dimensional tolerances. This commitment to precision machining and material selection results in a product that stands out for its consistency and reliability. The use of 6061-T6 aluminum balances strength and weight savings, making it an excellent choice for performance-focused builds where durability and corrosion resistance are critical. For Subaru owners and fabricators, this weld bung offers a dependable foundation for integrating sensors, fittings, or other components into custom piping or fluid systems. Its compatibility with SAE standards ensures a secure and leak-free connection, which is essential for maintaining system integrity under demanding conditions. Whether you are upgrading your WRX, STI, or BRZ exhaust or building a custom oil or coolant line, this weld bung supports your project with professional-grade quality. Features & Specifications This 411 Works Aluminum NPT Female Weld Bung is engineered for custom fabrication and features precision CNC machining from 6061-T6 aluminum. Constructed in the USA with North American materials, it delivers durability and corrosion resistance for Subaru enthusiasts and fabricators seeking reliable weld fittings. Brand: 411 Works Product: Aluminum NPT Female Weld Bung Part Number: 411-FWBA375NPT5 Fitment: N/A (Universal Fabrication) Material: 6061-T6 Aluminum Finish: Natural Aluminum Construction: CNC Machined on HAAS Lathe Origin: Made in USA Key Benefits Precision Engineering: CNC machining ensures tight tolerances and consistent fitment for reliable weld connections. Durability: 6061-T6 aluminum offers excellent strength and corrosion resistance for long-lasting performance. Versatility: Designed to SAE specifications, suitable for a wide range of custom fabrication projects beyond specific Subaru models. Lightweight: Aluminum construction reduces added weight compared to steel alternatives, beneficial for performance builds. Made in USA: Manufactured domestically with high-quality North American materials, supporting quality control and supply chain reliability. Fabrication Compatibility: Ideal for integrating sensors, fittings, or fluid lines in custom exhaust, turbo, or cooling system setups. What's Included 1× 411 Works Aluminum NPT Female Weld Bung Engineering drawing available online for precise dimensions Installation & Compatibility Installation of the 411 Works Aluminum NPT Female Weld Bung requires welding skills and appropriate equipment, making professional installation recommended for best results. This weld bung is designed for universal use in custom fabrication and is not vehicle-specific, so verify compatibility with your specific project requirements. No modifications are needed to the bung itself, but proper welding technique is essential to maintain structural integrity and leak-free connections. Professional Installation: Recommended Modifications Required: None to the bung; welding required for installation Verify Compatibility: Confirm fitment for your custom application and tubing size Shop with confidence at Subimods—your Subaru parts specialists.
