别克前/后氧传感器 24108423 / 26226025 / 26226027，AIUSLN 跨境热销款

Buick Regal, Excelle, Yings or many models (2.0L, 2.4L and 1.6T engines) AIUSLN oxygen sensor (OEM 24108423) with stainless steel housing and ceramic sensing element; high-temperature and corrosion resistance; stable lifespan; good as replacement for long-term use. Monitors oxygen in exhaust and feeds back to ECU to adjust air-fuel ratio; installation difficulty medium; remove exhaust pipe; if fuel consumption increases, acceleration weakens, or emissions exceed standards, replace promptly.