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This Lexus RX300 A/F Ratio Oxygen Sensor is engineered to provide precise monitoring of the air-fuel mixture, helping your engine maintain optimal combustion, improved fuel efficiency, and reduced emissions. Manufactured using premium-quality materials and advanced sensing technology, it offers fast response times, long-lasting durability, and reliable performance even under extreme engine temperatures. The sensor is designed to meet OEM specifications, ensuring a perfect fit and seamless integration with your vehicle’s fuel management system. Whether you are experiencing poor fuel economy, rough idling, or check engine light issues, this replacement sensor delivers accurate data to help restore smooth engine operation and overall performance. With its durable construction and dependable accuracy, it is an ideal choice for Lexus RX300 owners looking to maintain engine health and efficiency.