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 Part 21058 oxygen sensor is engineered to ensure your vehicle's optimal engine performance, fuel efficiency, and emissions control. Designed by NGK, a trusted leader in automotive sensor technology, this direct fit sensor is compatible with a range of vehicles including the 2007 Buick Rainier, GMC Envoy, Saab 9-7x, Chevrolet Trailblazer, and others from model years 2007 and 2009. Its precise design helps maintain the correct air-fuel mixture, supporting your vehicle's on-board diagnostic system and ensuring compliance with emissions standards.
Constructed with an advanced ceramic sensor element, the NGK 21058 features a three-stage contaminant-resistant plasma jet and deposit trap overcoat. This protective layer guards against element poisoning, enhancing sensor longevity and performance under challenging conditions. The sensor's robust design allows it to withstand the harsh environment within the exhaust system, providing consistent and reliable feedback to the engine control unit (ECU).
The installation of this oxygen sensor is straightforward, ensuring a secure fit that guarantees optimal operation. Regular replacement of the sensor is vital for maintaining fuel economy and reducing harmful emissions. As an OEM-replacement part, it is manufactured to meet or exceed original equipment specifications, ensuring compatibility and durability. Trust the NGK 21058 oxygen sensor to deliver precise performance, supporting your vehicle's emissions system and overall engine health.

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