- Designed for engines that use three-way catalytic converters to reduce exhaust pollution, where oxygen sensors are essential components for proper emissions control. - Inlet Thread Size: M12X1.5 Male - Outlet Thread Size: M12X1.5 Outlet Female - Center Tap Thread Size: 1/8 inch NPT Female - Benefits: Provides a standard inlet and outlet fit with common M12X1.5 sensor ports and a center tap 1/8 NPT port for additional connections, ensuring reliable sensor installation and compatibility with emissions systems. - Key attributes: function to monitor and manage exhaust gas conditions; compatibility with engines and sensors using M12X1.5 threads on both inlet and outlet; center tap support via 1/8 inch NPT female port; compact, straightforward connection for maintenance and service. - Use scenarios: 1) Replacing a worn or failing oxygen sensor on vehicles with three-way catalytic converters to maintain accurate emissions monitoring. 2) Servicing automotive fleets where standard M12X1.5 thread sensors are required for proper compatibility and emissions compliance. 3) Installing in aftermarket or diagnostic setups that require a center tap port provided by the 1/8 inch NPT Female connection for auxiliary equipment or testing probes.