The Bosch Oxygen Sensor - 17404 is a high-quality sensor designed to measure the oxygen levels in a vehicle's exhaust system. It is a direct-fit replacement for the original equipment and is compatible with a wide range of vehicle makes and models. This sensor is crucial for ensuring the proper fuel-to-air ratio in the engine, which helps improve fuel efficiency and reduce harmful emissions. It features a durable construction and advanced technology for accurate and reliable readings. The Bosch Oxygen Sensor - 17404 is an essential component for maintaining the performance and efficiency of a vehicle's engine.