This Engine Control Unit (ECU) is a genuine OEM part for a 2009 Chevrolet Malibu. It is manufacturer part number 12625455 and interchange part number 590-01527. This ECU is designed to control the engine's electronic systems, ensuring optimal performance and efficiency. It is compatible with other Chevrolet models and is a reliable replacement for a damaged or malfunctioning ECU. This product is sold in used condition, but has been fully tested and is in good working order.