CNC-Machined Lipped O2 Sensor Bung – 304 Stainless Steel

Upgrade your fabrication project with our premium lipped O₂ sensor bungs, engineered for professional builders and DIY fabricators alike. Each bung is CNC-machined from high-quality 304 stainless steel, delivering exceptional durability, corrosion resistance, and a clean, reliable weld every time.

Designed with a built-in lip for perfect alignment, these bungs make installation easier and more accurate. Whether you’re adding a wideband O₂ sensor, replacing an old bung, or building out a full custom exhaust system, this component provides the precision and longevity your project demands.

Our O₂ sensor bungs are trusted in performance exhaust builds, turbo systems, and high-temperature environments where strength and accuracy are essential. The smooth CNC finish reduces prep work, offers a professional look, and helps fabricators produce clean, consistent welds with minimal effort.

• Premium 304 Stainless Steel – Superior corrosion and heat resistance

• CNC-Machined Precision – Smooth finish, perfect threading, and consistent fit

• Lipped Design – Helps with sensor alignment and makes welding easier

• Wideband Compatible – Works with most major wideband O₂ sensors

• Fabricator-Ready – Saves time with minimal prep required

• Universal Fitment – Suitable for a wide variety of automotive makes and models

Technical Specifications

• Material: 304 Stainless Steel

• Manufacturing: CNC-Machined

• Design: Lipped O₂ Sensor Bung

• Thread Size: Standard O₂ sensor thread (M18 x 1.5)

• Outer Diameter: ~22mm / 0.87"

• Height: ~12mm / 0.47"

• Finish: Smooth CNC finish, weld-ready

• Compatibility: Wideband O₂ sensors, factory O₂ sensors, aftermarket systems