Product Description: High-Performance Rear O2 Sensor for Peugeot Models Enhance your vehicle's efficiency and environmental performance with our high-quality Rear O2 Sensor. Specifically designed for select Peugeot models, this sensor ensures optimal engine function and reduced emissions. Applicable Model: This O2 sensor is a perfect replacement for PEUGEOT 206, 207, 307, 406, and PARTNER 1.4 models. Ensure compatibility with your specific vehicle model before purchasing for optimal fit and performance. OE Number: The reference part numbers are 1628KY, 9636876580, and 0258006185. Please verify these numbers against your existing part to guarantee a match and avoid incorrect purchases. Accurate Measurement: The O2 sensor provides precise measurement of the oxygen concentration in the exhaust, delivering real-time feedback. This helps the engine control system adjust the fuel-to-air mix ratio for optimal combustion efficiency, improving overall vehicle performance. High Performance: Constructed using a robust metal manufacturing process, this sensor offers high precision and responsiveness. It is designed to function stably across various working conditions, maintaining excellent performance and reliability. Environmental Protection: By accurately measuring and adjusting the fuel mix, this O2 sensor helps reduce harmful gas emissions, particularly nitrogen oxides. It enhances engine combustion efficiency, leading to lower fuel consumption and reduced emissions, contributing to a cleaner environment. Upgrade your Peugeot with our reliable Rear O2 Sensor, ensuring improved engine efficiency and environmental compliance. Experience enhanced performance and reduced emissions with this essential automotive component.