ECU from a 2004 Dakota. Removed from a truck that ran well with no CELs. The case and connectors have no damage. Pictures are of the actual part you will receive. Part number is 56029036AD. This will replace the same number ending in AC thru AF. Fits 2-wheel drive 04 Dakota with 4.7L engine, automatic transmission, and matching number. Please make sure to match number before ordering. We require you to provide us with the following information to ensure plug and play operation with your vehicle, no additional programming required: Vehicle identification number (VIN) The current odometer reading displayed on your instrument cluster Your current PCM part number (This is printed on the part label that says, “Authorized Software Update”) Please include the required programming information in the “Message to seller” comment box during checkout or send us a message on eBay using the “Contact seller” button in this listing. Don’t need the item programmed because your business has the ability to do so? No problem. Just let us know and we’ll ship this item unprogrammed. If we do not receive your VIN, odometer reading and PCM part number or a message requesting this item to be sent unprogrammed within one business day of your purchase, your order will be canceled and a refund will be issued. So please make sure you have all of the required information ready when you make your purchase.