NGK Nissan Altima 2003-2002 Direct Fit Oxygen Sensor

You're getting a direct-fit oxygen sensor from NGK, part number 24407. This sensor is a key part of your Altima's onboard diagnostic system. It constantly sends information to the engine control unit (ECU) to help manage the air-fuel mixture, which is important for getting the best possible engine performance, maximizing your fuel economy, and keeping those exhaust emissions in check. If the ECU sees an issue with fuel delivery or the catalytic converter, this sensor is often the first to alert the system.

NGK, known as NTK in the OEM world, is a major supplier of these sensors. They have a lot of experience with the ceramic elements used in oxygen sensors, controlling the process from the raw materials all the way to the finished product. This particular sensor features an advanced ceramic element with a special coating designed to resist contamination and poisoning, helping it last longer and perform reliably.