The Bosch Oxygen Sensor - 16506 is a high-quality sensor designed to measure the oxygen levels in a vehicle's exhaust system. It is a crucial component in the engine's fuel management system, providing accurate readings to help maintain optimal fuel efficiency and reduce harmful emissions. This sensor is compatible with a variety of vehicle makes and models and is constructed with durable materials for long-lasting performance. It is a direct replacement for the original sensor and is easy to install. The Bosch Oxygen Sensor - 16506 is an essential part of any vehicle's emission control system and helps to ensure proper engine performance.