This is a brand new GM TCM (Transmission Control Module). New units come blank with no programming, these are not plug and play units. Please select from the drop down menu to properly ensure your new module will work for your truck! These units will work for 2008-2014 GM Duramax platform trucks.
Send in your core TCM to receive a factory GM file programmed to your vin number! Please include your VIN number in the notes section.