Toyota Prius Highlander Oxygen Sensor 89465-52670 OEM Exact Match

Toyota Prius, Highlander OEM-precise oxygen sensor, OEM number 89465-52670, not interchangeable with other models to ensure precise fit. Real-time exhaust oxygen monitoring provides feedback to ECU to adjust air-fuel ratio for combustion efficiency. Replacing can resolve high fuel consumption, weak acceleration, and engine light issues. If idle stability is poor, exhaust emits black smoke, or fuel economy rises noticeably, the oxygen sensor aging is likely; replacement recommended to restore power and economy.