Universal Compatibility:M18x1.5 threads fit all standard O2 sensors (Bosch/Denso/NTK/OEM) for secure installation on exhaust systems ​Robust structure:304 stainless steel bungs withstand 1500°F heat. Zinc-plated mild steel plugs resist corrosion Welding-Ready Design:Pre-beveled edges and smooth surfaces allow direct TIG/MIG welding without pre-grinding Secure Long-Term Fit:Tapered base and laser-cut threads prevent loosening under vibration in high-temperature environments Repair Focused:Designed for replacing damaged sensor ports or adding monitoring points to existing exhaust systems

Material Specifications​

• ​Bungs: ​304 stainless steel​ (high corrosion resistance)
• ​Plugs: ​Zinc-plated mild steel​ (rust prevention)
• ​Thread: ​M18x1.5​ (industry-standard compatibility)
• ​Max Temperature: ​1500°F/815°C​ (withstands extreme exhaust heat)

​Intended Applications​
• ​Repairing stripped/damaged sensor threads​ (extends exhaust system life)
• ​Adding sensor ports to custom exhaust configurations​ (ideal for tuners/performance builds)
• ​Maintaining structural integrity of exhaust components​ (prevents weld fatigue)

​Installation Notes​

• ​Clean surfaces before welding​ (ensures strong adhesion)
• ​Apply anti-seize compound to threads​ (prevents seizing/thread galling)
• ​Not recommended for leaded fuel environments​ (optimized for unleaded fuels)

​Compliance Statement​
This product is intended for exhaust system maintenance and repair. ​Modifications affecting emissions control devices may violate federal regulations.​