My son in laws 2007 Saturn Ion 2 with 2.2 engine needs to have the air conditioners compressor clutch changed.The compressor has been checked and is fine.GM has been terrible at supplying info on Parts and I have found on-line parts for the compressor clutch but I was wondering if the same part from a Cobalt 2007 2.2 would be interchangeable as the price listed is half as much? Can anybody with mechanic experience confirm this ? thanks