福克斯氧传感器 3M51-9F472-CBG 0258006603 双OEM备件可选

Ford Focus oxygen sensor 3M51-9F472-CBG/0258006603 offers dual OEM options; directly replaces original 3M51-9F472, 3M51-9F472-CBG, and 3M51-9F472-AB. Highly versatile. Core function is real-time monitoring of exhaust oxygen and feeding ECU to adjust air-fuel ratio for engine efficiency. Designed for Ford Focus 1.8L/2.0L; replacement reduces high fuel consumption, weak acceleration, and emission fault lights. If idle is unstable, exhaust odor is strong, or fuel consumption spikes, sensor aging is the cause; replace promptly.