NTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle's on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, NTK uses state-of-the art technology enabling complete control of the ceramics used in our wideband oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology. NTK is constantly improving sensor designs to provide excellent performance and improve resistance to failure. NTK works with their OEM manufacturers through each phase of development from concept to production.

ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning

The NGK Audi A8 Quattro wideband air-fuel ratio sensor, part number 24338, is engineered to optimize your vehicle’s engine performance and emissions. This sensor plays a crucial role in the vehicle’s on-board diagnostic system by providing precise, linear signals that allow the ECU to continuously fine-tune the air-fuel mixture for optimal combustion. As a result, it enhances fuel efficiency and reduces harmful exhaust emissions, supporting both environmental standards and vehicle performance.
Built with advanced ceramic sensor elements, this sensor features a 3-stage contaminant-resistant plasma jet and deposit trap overcoat. These innovations protect against element poisoning, ensuring durability and consistent performance over time. The sensor’s robust design helps resist contamination and failure, making it a reliable choice for maintaining your vehicle’s efficiency.
Designed specifically for fitment in models including 2007-2015 Audi R8 and 2007-2010 Audi A8 Quattro, this direct-fit sensor simplifies installation and ensures proper operation. It is an OEM-equivalent component, manufactured by NGK, a trusted name in automotive sensors. Whether you're performing maintenance or upgrading your vehicle, this sensor offers the precision and durability needed for high-performance applications. Trust NGK’s expertise and innovative technology to keep your Audi running smoothly and efficiently.

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