Collection: 989 - Weld bungs

O2 Sensor Weld Bungs - M18 x 1.5 - Speedflow

If you're making custom headers, fabricating exhaust systems, or need O2 sensor bungs for data logging, engine management, or test equipment, we have the precision weld-on fittings you need. These M18 x 1.5 weld bungs are designed to accept the commonly found M18 O2 sensors used across automotive and motorsport applications.

Key Features:

• CNC Machined in Australia - Precision manufactured at Speedflow's factory in Taree, NSW
• Multiple Material Options - Available in steel, stainless steel, or aluminium to suit your application
• M18 x 1.5 Thread - Standard thread size for most automotive O2 sensors
• Easy Welding - Designed for straightforward installation in exhaust systems and headers
• Complete System Solutions - Matching steel 806 metric plugs available separately for clean installations

Perfect for custom header fabrication, turbo exhaust systems, engine management tuning, dyno testing, and emissions monitoring. Whether you're building a race car, tuning a performance engine, or fabricating custom exhaust systems, these precision weld bungs ensure reliable O2 sensor mounting.

Australian made quality from Speedflow. Fast delivery from local stock.