Hyundai Verna Rear Oxygen Sensor 39210-03065 Plug-and-Play

For 2016-2020 Hyundai Elantra and 1.4L/1.6L petrol engines, and the same platform Kia K2, rear oxygen sensor OEM number 39210-03065 is a key part in maintaining emission control. It monitors oxygen content in exhaust, feeds ECU to optimize air-fuel ratio, ensuring efficient combustion and reduced emissions. Replacement difficulty is low; located on the downstream exhaust, use a dedicated O2 sensor socket for removal, plug-and-play without programming after installation to avoid mis-matches.