Core units, were opened before we got them. Platinum Auto Parts is committed to provide the best quality automotive and diesel parts at a fair price. We appreciate the opportunity to serve you. Thank you for your business! All of our inventory is pulled from good donor vehicles with a 95% success rate if the part number matches the unit that is being replaced. Otherwise, they may need to be programmed. If you have any issue at all, please send us a message directly! We will always have you covered in any situation!