The Bosch Oxygen Sensor - 17017 is a high-quality automotive sensor that measures the oxygen content in a vehicle's exhaust gas. This sensor is designed to accurately detect the levels of oxygen in the exhaust and provide this information to the vehicle's engine control unit. It is an essential component in the vehicle's emissions control system, helping to improve fuel efficiency and reduce harmful emissions. The Bosch Oxygen Sensor - 17017 is compatible with a wide range of vehicle makes and models and is known for its durability and reliability. This product is an ideal choice for those looking to replace a faulty or worn-out oxygen sensor in their vehicle.