Dodge offered a standard powertrain limited warranty, but the duration and mileage varied. You need to consult the original warranty paperwork that came with the vehicle or check the owner's manual. This document will clearly state the terms and conditions of the powertrain warranty.
If the original warranty has expired, it's highly unlikely that any factory drivetrain warranty remains. Any current warranty would be an extended warranty purchased separately from the dealership or a third-party provider.