The Speedflow 990-M12-D M12 x 1.5 female aluminium weld bung is designed to add a strong, reliable M12 x 1.5 metric threaded port to aluminium tanks, pipes, manifolds, and fabricated components. Manufactured in Australia by Speedflow, this weld bung provides a clean, professional solution for custom fuel, oil, cooling, and sensor installations. Precision CNC-machined from high-quality aluminium, this bung is intended to be TIG welded into aluminium components, creating a durable threaded boss suitable for metric sensors, adapters, and fittings. Ideal for motorsport and custom fabrication where compact size, strength, and sealing reliability are critical. Features M12 x 1.5 female aluminium weld bung Precision CNC-machined aluminium construction Designed for TIG welding into aluminium components Provides a strong, permanent metric threaded port Suitable for fuel, oil, cooling, and sensor applications Designed and manufactured in Australia by Speedflow Typical Applications Oil pressure and temperature sensor ports Fuel system sensor and return fittings Cooling system sensor installations Catch can and breather system ports Custom motorsport and fabrication projects Fitment Notes Thread size: M12 x 1.5 female Material: Aluminium Requires TIG welding by a qualified fabricator Allow weld area to cool fully before installing fittings Use appropriate sealing method as required by the installed fitting
