The Bosch Premium Oxygen Sensor, part number 11027, is a high-quality, brand new sensor designed for vehicles. Manufactured in the United States, this oxygen sensor is essential for monitoring and adjusting the fuel-to-air ratio for optimal engine performance. Bosch is a well-known and trusted brand in the automotive industry, ensuring reliable and accurate readings from this sensor. Upgrade your vehicle with this premium oxygen sensor for improved emission control and overall efficiency.