汉兰达后氧传感器 89465-48260 通用型，适配48250/48110

Toyota Highlander rear oxygen sensor (OEM number 89465-48260) installed downstream of the catalytic converter; monitors exhaust oxygen content and feeds signal to the ECU to precisely adjust the air-fuel ratio, ensuring combustion efficiency and emissions compliance. Also compatible with 48250 and 48110 models; fits multiple Highlander models. Installation difficulty medium; estimated labor 0.5-1 hour; avoid damaging threads during removal. If fuel consumption rises, acceleration weakens, check engine light illuminates, or exhaust odors appear, the oxygen sensor may be failing and should be replaced promptly.