Daniel, This is what is confusing. My dealer just verified the unit is bad and he is specifying this is the part number. They could not tell me if it has been superseded. I looked on Ebay under the number I need and I can get one for $110 delivered. I also see this remanufactured unit in a box with your part number and the part number I need written next to it. I also called another dealer and gave them my vin and they said 15976820 too....
http://www.ebay.com/itm/ACDelco-1597...8e80a5&vxp=mtr
I am not sure I want to gamble $60 and not have it function properly. Maybe someone else would know.
John