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 25195 oxygen sensor is a high-quality replacement designed specifically for Hyundai Santa Fe models from 2007 to 2009 and Kia Optima models from 2006 to 2008. Engineered with an advanced ceramic sensor element, this oxygen sensor provides reliable, contaminant-resistant performance to ensure your vehicle’s engine runs smoothly and efficiently. Its precise feedback to the vehicle's ECU optimizes the air-fuel mixture, helping to maximize fuel economy and reduce emissions.

Built for durability, the sensor features a 3-stage plasma jet and deposit trap overcoat that offers superior resistance against poisoning and contamination, extending the lifespan of the component. This ensures consistent readings and prevents premature failure caused by harsh operating conditions. As a direct-fit replacement, the NGK oxygen sensor simplifies installation without the need for additional modifications or adapters, making it an ideal choice for professional technicians and DIY enthusiasts alike.

Trust NGK’s expertise in OEM application technology, developed in collaboration with leading vehicle manufacturers. This sensor complies with Prop 65 requirements and is compatible with your vehicle’s existing systems, helping maintain optimal engine performance, emissions compliance, and fuel efficiency. Whether for routine maintenance or repairs, the NGK Hyundai Santa Fe and Kia Optima oxygen sensor offers dependable performance and peace of mind on the road.

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