Kubota RTV O2 Bung (12mm) by HMF Racing

The O2 Weld-In Bung by HMF is a precision-crafted component designed to support aftermarket exhaust system installations that require reliable oxygen sensor placement. Built from durable stainless steel, this 12mm fitting bung provides a secure and long-lasting solution for mounting Bosch-style O2 sensors on high-performance exhaust systems. Whether you are upgrading your exhaust for improved airflow or fine-tuning your engine for maximum efficiency, this weld-in bung ensures accurate sensor readings and dependable performance under demanding conditions.

Engineered for weld-in applications, the O2 bung is designed to withstand the high heat and stress associated with performance exhaust systems. Stainless steel construction resists corrosion and extends the lifespan of both the bung and the oxygen sensor, even in tough off-road or heavy-duty environments. Its universal 12mm size makes it compatible with standard Bosch O2 sensors, offering flexibility for a wide range of vehicles and applications. The precision-machined design ensures a tight fit that minimizes leaks and maintains consistent exhaust gas readings, which are critical for proper air-fuel ratio adjustments.

This O2 Weld-In Bung is an essential component for enthusiasts and professionals looking to install aftermarket exhaust systems on utility vehicles, ATVs, UTVs, and other performance machines. By providing a secure mounting location for oxygen sensors, it allows your engine management system to optimize fuel delivery, reduce emissions, and improve overall engine performance. Whether you are building a custom exhaust or replacing a worn-out component, this bung offers the reliability and performance you need.

Ideal for welders, fabricators, and performance tuners, the HMF O2 Bung is a small but vital part of any custom exhaust project. With its stainless steel durability, universal compatibility, and precision fitment, this 12mm weld-in bung delivers consistent quality and dependable results. Equip your exhaust system with the right components and ensure your oxygen sensors operate at peak accuracy with this professional-grade solution.