Oxygen Sensor Fitting Stainless

The Oxygen Sensor Fitting Stainless (VIB1194A) is a weld-on oxygen sensor bung designed for exhaust system fabrication and custom tuning applications. Machined from stainless steel, this 18mm x 1.50 female threaded fitting provides a secure, corrosion-resistant mount point for oxygen sensors in high-temperature exhaust environments. Its compact, durable construction makes it the preferred choice for builders working on street rods, custom exhaust systems, and performance engine builds where precise sensor placement and long-term reliability are critical.

The 18mm bore accommodates standard oxygen sensor bungs while the 1.50 female thread specification aligns with universal oxygen sensor fitment standards used across aftermarket and OEM applications. Stainless steel construction resists oxidation and thermal stress in temperatures exceeding 1000°F, ensuring the bung and sensor assembly remain stable over extended use. The natural finish requires direct welding into the exhaust pipe or collector, providing maximum structural integrity at the mount point. Each unit ships individually, allowing fabricators to select the exact quantity needed for multi-sensor configurations.

This fitting serves exhaust system builders, engine tuners, and automotive fabricators who need reliable oxygen sensor mounting on custom headers, manifolds, or downpipes. Whether installing wideband sensors for engine management systems, adding O2 monitoring to EFI conversions, or integrating sensors into performance exhaust designs, the stainless construction and standard thread pattern eliminate compatibility guesswork. The compact footprint (2.95 x 0.65 x 3.6 inches, 0.06 lbs) makes installation straightforward in tight engine bay configurations.

Oxygen sensor bungs are foundational components in exhaust system design, bridging the gap between exhaust piping and sensor installation. Unlike threaded adapters, weld-on bungs provide permanent, leak-free mounting when proper welding technique is applied. The stainless material choice reflects industry standards for high-performance and longevity-focused builds where corrosion failure or thermal cycling degradation could compromise tuning accuracy.