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 Hummer H3 2006 Direct Fit Oxygen Sensor (Part Number 21063) is engineered to optimize your vehicle's engine performance and emissions system. As a vital component within the on-board diagnostic system, this oxygen sensor provides real-time feedback to the engine control unit (ECU), ensuring the air-fuel mixture remains within optimal ranges for efficient combustion. Proper functioning of this sensor helps maximize fuel economy, reduce harmful exhaust emissions, and maintain catalytic converter efficiency, making it an essential replacement part for your Hummer H3.
NGK is renowned for its advanced ceramic sensor technology, utilizing a 3-stage contaminant-resistant plasma jet and deposit trap overcoat that guards against sensor poisoning and prolongs lifespan. This design ensures consistent performance even in demanding driving conditions. The sensor's precise fit and plug-and-play installation facilitate straightforward replacement, restoring your vehicle’s emissions control system to peak operation.
Manufactured to meet or exceed OEM standards, the NGK oxygen sensor is a reliable choice for maintaining vehicle compliance and engine health. Its durable construction and innovative ceramic elements enable resistance to contamination while providing accurate measurements vital for fuel management and emissions reduction. Trust NGK's expertise to support your vehicle’s emission compliance and engine efficiency with this high-quality oxygen sensor designed specifically for the 2006 Hummer H3.

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