Genuine OEM Volkswagen Lambda Sensor, part number 036906262J. This oxygen sensor is designed to measure the oxygen content in the exhaust gases before the catalytic converter. It plays a crucial role in engine management by providing data for fuel mixture adjustments, optimizing performance and emissions. Manufactured to precise OEM standards, this sensor ensures accurate readings for efficient engine operation. Genuine OEM lambda sensors are calibrated for exact signal output, ensuring proper engine control and emissions compliance.