Need to cap off an unused O2 sensor port? This M18x1.5 pitch blanking plug (or bolt, or bung – call it what you want!) is exactly what you need. It's a simple but crucial part for when you delete sensors, modify exhausts, or just need to seal that lambda sensor hole. Made as a CNC machined part to DIN 908 standards, so you know it's quality. Brand new and marked as a performance part, meaning it's built to handle heat and exhaust conditions. Whether you're working on a car, motorcycle, or any engine with O2 sensor ports, this plug gives you a clean, secure seal. No more exhaust leaks from unused sensor holes – just screw it in and you're done!