Hyundai Tucson 2.7 / Kia Oxygen Sensor 39210-37523 234-4192 Precise Emission Control

Hyundai Santa Fe 2.7 and Kia models oxygen sensor, OEM 39210-37523 (compatible with 234-4192); installed on exhaust pipe to monitor oxygen content, feed ECU to precisely control air-fuel ratio, ensuring emissions and engine efficiency. Installation mid-level; expected labor 30-45 minutes; avoid thread damage. If check engine light on, fuel consumption abnormal, idle unstable, or acceleration lag, sensor may be failing; replace promptly.