The Bosch Oxygen Sensor - 18194 is a high-quality automotive sensor that measures the amount of oxygen in the exhaust gas of a vehicle. This sensor is designed to monitor the air-fuel ratio and provide feedback to the engine control unit, ensuring optimal engine performance and reduced emissions. It is made with durable materials and advanced technology, making it reliable and long-lasting. The Bosch Oxygen Sensor - 18194 is compatible with a wide range of vehicle makes and models, and it is easy to install. This product is essential for maintaining the efficiency and performance of a vehicle's engine.