Genuine OEM Nissan Exhaust Gas Temperature Sensor, part number 2264000QAB. This sensor measures the temperature of exhaust gases, providing vital information to the engine control module for optimizing combustion, managing emissions, and ensuring the proper function of exhaust after-treatment systems. It is typically installed in the exhaust manifold or pipe. Genuine OEM sensors offer accurate readings and durability, crucial for maintaining engine efficiency and compliance with emission standards.