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The ERA 550476 is a high-quality RPM sensor engineered to provide accurate engine speed readings. This component plays a crucial role in the engine management system, ensuring optimal performance and efficiency. Designed as a direct replacement, this sensor is compatible with the specified OEM part numbers, facilitating a straightforward installation process. Its robust construction ensures durability and reliable operation under various driving conditions. By accurately measuring the engine's rotational speed, the RPM sensor allows the vehicle's computer to adjust fuel injection timing, ignition timing, and other critical parameters. This contributes to smoother engine operation, improved fuel economy, and reduced emissions.