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 Cadillac Catera oxygen sensor (Part Number 21535) is designed to ensure optimal engine performance and emission control for your vehicle. As a direct-fit replacement, this sensor provides precise feedback to the engine control unit (ECU), helping to maintain the ideal air-fuel mixture for efficient combustion. Its advanced ceramic sensor element features a three-stage contaminant-resistant plasma jet coating, which enhances durability and resists poisoning from engine contaminants, contributing to a longer service life. This technology ensures consistent operation, reducing the likelihood of misfires and poor fuel economy. Proper functioning of the oxygen sensor is vital for the vehicle’s onboard diagnostic system (OBDII), alerting to issues such as fuel delivery problems or catalytic converter inefficiency. By replacing a faulty sensor with the NGK OEM-quality part, drivers can restore optimal vehicle performance and emission compliance. The sensor's robust construction and precise engineering make it suitable for 1997 and 1998 Cadillac Catera models, providing reliable performance under various driving conditions. Trust NGK’s expertise in sensor technology to deliver a product that meets or exceeds OEM specifications, ensuring a seamless fit and long-lasting operation on your vehicle.

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