Shop O2 Sensor Components at Advance Auto Parts. Find Advance Auto Parts Oxygen Sensor & Sensor Part. Learn Sensor Working Principle. Get Sensor Parts Kit. Maintaining optimal performance of your vehicle's O2 sensors is crucial for engine efficiency and emission control. Look for signs of wear such as poor fuel economy, a rough idle, or a check engine light indicating it may be time to replace your oxygen sensors. When selecting new O2 sensor components, choose high-quality materials like zirconia or titania to ensure durability and accurate readings. Our range includes universal and direct-fit sensors, each with unique features designed for specific vehicle requirements. To make installation seamless, always consult your vehicle?s manual and consider professional fitting to guarantee precise operation and longevity. Shop with us today for reliable auto parts that enhance your car's performance and keep your engine running smoothly.