I just had my TPS replaced. The part number on the box it came in is 53031575AF. The part number stamped on the removed unit is the same except without the "AF" The part number of the electrical component is 56028184, with the number 8059RE under it. I was told the electrical part could not be replaced. I doubt that is correct but I was unable to locate that part. The complete assembly came from a Dodge parts place in Vancouver, Canada. Hope this helps.
RD Brown