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 21577 oxygen sensor is designed for precise engine management and optimal emission control in select Chevrolet Cruze and Buick Encore models from 2011 to 2014. As a critical component of your vehicle's on-board diagnostic system, this sensor provides real-time feedback to the engine control unit (ECU), helping to maintain the ideal air-fuel ratio for maximum efficiency and reduced emissions. Built with advanced ceramic sensor elements, the sensor features a three-stage contaminant-resistant plasma jet and deposit trap overcoat, which protects against element poisoning and ensures long-lasting performance.
Engineered for high durability, the NGK oxygen sensor offers reliable operation under various driving conditions. Its direct fit design simplifies installation, making it an ideal replacement part for maintaining your vehicle’s emissions compliance and fuel economy. This sensor is suitable for models including the 2011-2014 Chevrolet Cruze and the 2012-2014 Buick Encore, ensuring a perfect match for your vehicle’s specifications. Trust NGK, a leading manufacturer known for quality and innovation in automotive sensors, to deliver a component that keeps your engine running smoothly.
Note that this product complies with Prop 65 requirements and is not CARB-approved, making it suitable for use in non-CARB regulated environments. Proper handling and installation are recommended to ensure optimal performance. The sensor is shipped with all necessary components and is covered by NGK’s market support and OE application expertise, providing peace of mind in your repair or upgrade process.

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