18mm O2 Sensor Plug – Threaded Bung Plug

Seal your exhaust system cleanly and securely with the 18mm O2 Sensor Plug – Threaded Bung Plug, designed for Trinity Racing and other aftermarket exhausts. This plug is the perfect solution when you’re running a custom tune, aftermarket controller, or simply don’t need an O2 sensor in place. Threaded for a precise 18mm fit, this bung plug prevents exhaust leaks, maintains backpressure integrity, and ensures your system looks and functions cleanly without a sensor. Ideal for riders performing sensor deletes or replacing lost components, it’s built for heat resistance and long-lasting performance in harsh off-road environments. ✅ Key Features: 18mm Threaded O2 Sensor Bung Plug Seals Unused Oxygen Sensor Ports Prevents Exhaust Leaks and Maintains Pressure Perfect for Sensor Deletes or Custom Tunes Easy Installation: Screw-in design Compatible with Trinity and Most Aftermarket Exhausts Heat-Resistant Material for Off-Road Conditions 💡 Perfect For: UTV/ATV owners removing or relocating O2 sensors Trinity Racing exhaust users performing O2 deletes Riders using standalone engine controllers or custom ECU tunes Anyone needing a quick, clean seal on unused sensor bungs Seal it right. Ride it clean. The 18mm O2 Sensor Plug gives your exhaust system the finish, performance, and durability it needs—without compromise.