Product Overview The Rear Oxygen Sensor LR005793 is an OE-grade emissions control component engineered for the for Land Rover LR2 / Freelander 2 equipped with the 3.2L inline-6 petrol engine. This sensor monitors oxygen content in the exhaust stream downstream of the catalytic converter, providing feedback to the Engine Control Unit (ECU) to verify catalytic converter efficiency and maintain precise air-fuel ratio control . Key Features Rear (post-catalyst) position –