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 BMW 318i 1985 Direct Fit Oxygen Sensor (Part Number 25510) is engineered to optimize your vehicle's engine performance and fuel efficiency. Designed specifically for BMW models including the 1985 318i and various M3 editions, this sensor provides precise critical feedback to your vehicle’s on-board diagnostic system. It plays a vital role in maintaining the ideal air-fuel mixture, reducing harmful emissions, and ensuring catalytic converter efficiency. Built with advanced ceramic sensor elements, the NGK sensor features a 3-stage contaminant-resistant plasma jet and deposit trap overcoat, which protects against element poisoning and extends sensor life. This ensures consistent performance even in harsh engine conditions, making it a reliable choice for vehicle owners seeking OEM quality and durability.

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