FWIW, the cam sensor on my wife's PT failed and Autozone was the only place that had one in stock. When I opened the box at the store to make sure it was the right part it was a MOPAR branded part in a plastic bag with a Mopar part number on it.
Also, early in my career I worked for a company that made thermostats and automotive electrical parts. We supplied to GM, Ford, Chrysler as well as the major parts store lines including NAPA. NAPA always wanted the same part we supplied the OEMs. The funny thing in our thermostats the line we sold to all the discount houses actually worked better than the OEM part.