Steel Bung/Plug Kit

The Innovate Motorsports Steel Bung/Plug Kit (part number 37350) is a weld-on oxygen sensor bung assembly designed for engine builders, tuners, and fabricators integrating aftermarket exhaust systems and data acquisition equipment. This kit includes both the straight steel bung and a protective plug, providing a complete solution for safely mounting 18mm x 1.50 female-threaded sensors into custom or modified exhaust headers.

The bung features a 18mm diameter with 1.50 female thread pitch, a standard specification for wide-band oxygen sensors and exhaust gas temperature sensors used in performance engine management systems. The straight configuration allows direct sensor mounting perpendicular to the exhaust pipe wall, minimizing turbulence and ensuring accurate readings. Natural steel construction delivers straightforward welding compatibility, requiring only standard MIG or TIG equipment for permanent installation. The included plug provides temporary port sealing during initial testing and tuning work before sensor installation, protecting internal exhaust passages from debris and thermal damage.

This kit is essential for tuners building custom headers, engine builders integrating closed-loop fuel control systems, and fabricators working on swap projects where factory sensor bungs are unavailable or incompatible. Real-world users rely on bungs like this when transitioning from carbureted to fuel-injected engines, adding forced induction, or upgrading exhaust systems on late-model platforms. Innovate Motorsports is recognized in the automotive tuning community for precision engine monitoring equipment, and this bung kit meets the specifications required for their sensor lineup and comparable aftermarket units.