The Bosch Oxygen Sensor - 13949 is a high-quality automotive sensor designed to measure the oxygen levels in a vehicle's exhaust gases. It is a crucial component of the engine management system, providing accurate data to help optimize fuel efficiency and reduce emissions. This sensor features a durable construction and advanced technology for reliable performance and long-lasting durability. It is compatible with a wide range of vehicle makes and models and is easy to install. With its precise readings and efficient operation, the Bosch Oxygen Sensor - 13949 is an essential part of any modern vehicle's engine management system.