The Bosch Oxygen Sensor - 16809 is a high-quality sensor designed to measure the amount of oxygen in a vehicle's exhaust system. It is made with durable materials and advanced technology to ensure accurate readings and long-lasting performance. This sensor is crucial for maintaining the proper air-to-fuel ratio in the engine, which helps to improve fuel efficiency and reduce harmful emissions. It is compatible with a wide range of vehicles and is easy to install. The Bosch Oxygen Sensor - 16809 is a reliable and essential component for ensuring optimal engine performance and reducing environmental impact.