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 Number 24520 oxygen sensor is a high-quality replacement designed for optimal performance in Subaru models including Impreza, Legacy, and Forester from the mid-1990s to late 1990s. This sensor plays a vital role in your vehicle’s on-board diagnostic system by providing continuous feedback to the ECU, which helps regulate the air-fuel mixture for efficient engine operation. Proper functioning of this sensor enhances fuel economy, reduces emissions, and ensures your vehicle remains compliant with environmental standards. Crafted with advanced ceramic sensor elements, it features a three-stage contaminant-resistant plasma jet and deposit trap overcoat, which protects against element poisoning and extends the sensor’s lifespan. The direct fit design ensures straightforward installation, making it an ideal choice for both professional mechanics and DIY enthusiasts seeking reliable OE replacement parts. This oxygen sensor is engineered by NGK, a trusted brand in automotive sensors, and is compatible with a variety of Subaru models from the specified years, ensuring a perfect fit and seamless integration into your vehicle’s existing system. With its durable construction and sophisticated sensing technology, the NGK 24520 oxygen sensor helps maintain engine efficiency and supports the vehicle's emission control systems, contributing to a cleaner environment and better driving experience. Trust NGK for quality, performance, and OE-level fitment in your automotive maintenance routine.

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