The Bosch Oxygen Sensor - 16154 is a high-quality automotive sensor that measures the amount of oxygen in a vehicle's exhaust gas. This sensor is designed to accurately detect the oxygen levels in the exhaust and send this information to the vehicle's engine control unit. It helps the engine control unit adjust the air-to-fuel ratio for optimal engine performance and fuel efficiency. The Bosch Oxygen Sensor - 16154 is a direct replacement for your vehicle's original sensor and is made with durable materials to ensure long-lasting performance. It is compatible with a wide range of vehicle makes and models and is easy to install. Overall, this oxygen sensor is an essential component for maintaining the performance and emissions of your vehicle.