五菱/宝骏/长安/昌河/风光通用氧传感器 0258006974 后氧传感

Wuling, Baojun, Changan, Chany, and Fengguang models use rear oxygen sensor 0258006974 with zirconia ceramic sensing element and high-temperature stainless steel housing; meets factory standards; tested on bench for 50,000+ km. Fits positions on models such as Hongguang, 730, Zixing, Furida, and 330; monitors exhaust oxygen content in real time and feeds ECU to adjust air-fuel ratio to keep catalytic converter efficient. Install with a 22mm wrench; avoid thread stripping; professional technician recommended.