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. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, NTK uses state-of-the art technology enabling control of the ceramic element used in our 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 Pontiac Vibe oxygen sensor part number 21547 is engineered to meet the exact specifications of your vehicle, ensuring optimal engine performance and fuel efficiency. This direct-fit sensor is designed for seamless installation in models ranging from 2003 to 2008, including Toyota Corolla, Toyota Matrix, and Pontiac Vibe. It plays a crucial role in the vehicle's on-board diagnostic system by providing real-time feedback to the engine control unit (ECU), helping maintain the ideal air-fuel mixture for efficient combustion and reduced emissions. The sensor's reliable operation is essential for passing emissions tests and ensuring your vehicle runs smoothly.
The NGK sensor features an advanced ceramic sensor element with a 3-stage contaminant-resistant plasma jet and deposit trap overcoat. This innovative design offers enhanced resistance to poisoning and contaminants, extending the lifespan of the sensor and maintaining performance over time. The sensor is built to withstand harsh engine conditions, including exposure to chemicals and extreme temperatures, thanks to its durable construction and contaminant-resistant coating. Easy to install, this OEM replacement ensures a precise fit and reliable operation, making it a trusted choice for professional mechanics and DIY enthusiasts alike.
This oxygen sensor is compatible with multiple model years and trims, offering flexibility and value. Proper installation of a high-quality sensor like the NGK Part Number 21547 is vital for ensuring your vehicle’s emissions system functions correctly, which can lead to better fuel economy, lower emissions, and improved engine responsiveness. Whether you are performing routine maintenance or replacing a faulty sensor, this part provides the performance and durability necessary to keep your vehicle running at its best.

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