HOHNNYREET O2 Sensor Bung Weld-In – 2-Pack, 304 Stainless, M18-1.5

Meet the HOHNNYREET O2 sensor bung weld-in with plug, a compact, durable solution designed for exhaust sensor ports across a range of vehicles. Fabricated from 304 stainless steel, it stands up to heat, moisture, and road salts, delivering reliable performance in demanding environments. The standard M18-1.5 thread design ensures a secure, universal fit for most oxygen sensor applications.

Key benefits

• 304 stainless steel construction provides robust corrosion resistance and long-term durability in harsh conditions.
• Standard M18-1.5 threads offer universal compatibility with common O2 sensors and straightforward installation.
• Copper O-ring delivers reliable sealing at high temperatures, helping maintain a tight seal after welding.
• Weld-in bung design simplifies the welding process, enabling precise, high-quality installations.
• Package includes 2 bungs, 2 plugs, and 2 copper O-rings for quick replacements and multi-vehicle use.

What to expect during installation

• Prepare the pipe, align the bung, and weld into place for a snug, leak-resistant fit.
• Use the copper O-ring with the plug to create a durable seal around the sensor mounting point.

In everyday use, a well-sealed bung helps maintain exhaust system integrity and simplifies sensor maintenance. The stainless body provides a confident feel when handling, and the copper seal resists thermal cycling, reducing the likelihood of leaks over time. While individual results vary by vehicle and setup, many users appreciate the dependable fit and ease of use offered by these components.

Versatility

Designed for automotive, bike, and motorcycle applications that rely on standard O2 sensor threads. The M18-1.5 thread is common across OEM and aftermarket setups, making this set a flexible addition to any shop or toolbox.

Quality and practical design

• 304 stainless steel offers corrosion resistance and a clean, durable finish.
• Copper O-ring maintains seal integrity across heat cycles.
• Contents support multi-vehicle projects and easy stock replacement.