荣威前后氧传感器10399754，双效合一，改善燃烧，适配多款车型。

For Roewe 350, 360, 550, 750 and MG6, MG5 common platform models; uses front and rear oxygen sensors with OEM 10399754; dual-efficiency design requires no location distinction; direct replacement of original part. Core function: monitor exhaust oxygen content and feed back to ECU to adjust air-fuel ratio, improve combustion efficiency, effectively solve rough idle, weak acceleration and high fuel consumption, and eliminate smoke, strong exhaust odor.