The product is a genuine OEM ECM PCM computer for a 2003 Dodge Ram 1500 truck with a 4.7L AT engine. This Engine Control Unit (ECU) requires programming and comes with a 1-month manufacturer warranty. It is specifically designed for the 03 Dodge Ram 1500 model with the part number P56028738AD. The ECM32023 and 590-07094 interchange part numbers are also included.