High-quality Material: Crafted from stainless steel, this O2 sensor weld bung kit ensures resistance against and extreme temperatures, making it ideal for use in harsh automotive environments. Versatile Compatibility: Designed to fit a wide range of vehicles, including R51 and , this kit provides a universal solution for your sensor installation needs. Efficient Exhaust Fluid Utilization: Enhance the performance of your vehicle's emission system with our O2 sensor bungs that optimal usage of exhaust fluid, reducing environmental impact. Engineering: Each bung in the kit is meticulously threaded with an M18x1.5 size to a and leak-free connection, crucial for maintaining the integrity of your vehicle's exhaust system. Complete Kit: This set includes 10 stainless steel bungs, stepped nut caps, and all necessary components for a straightforward installation, making it a must-have for automotive repair shops and DIY enthusiasts. Thread pitch is x 1.5.Diameter is 25mm/0.98 inch. High quality weld bungs with to drop right into the hole you drilled in your round tube for precise welding. Very shallow step for minimal to no protrusion into the pipe. Model Number:O2 Sensor Weld Bungs name:O2 Sensor Weld Bungs Material: Metal Colour: Silver fit: For Sensor Oxygen Sensor Package Contents: 10 * O2 Sensor Weld Bungs Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.