The Bosch Oxygen Sensor - 17231 is a high-quality automotive sensor designed to measure the oxygen levels in a vehicle's exhaust system. It is specifically designed for use in gasoline engines and helps to ensure optimal fuel efficiency and emissions control. This sensor is made with durable materials and advanced technology to provide accurate readings and long-lasting performance. It is easy to install and compatible with a wide range of vehicle makes and models. The Bosch Oxygen Sensor - 17231 is an essential component for maintaining the health and efficiency of a vehicle's engine.