No. They do that to make their part show up when people search for the major brand part, and I suspect to a lesser degree, to trick people into buying that part, thinking they're getting a great low price deal on the major brand.. happens all the time on ebay when someone mentions "Toyota" (as just one brand example) and then a part #, when if cornered they'll claim they didn't mean it's a Toyota part, only that it's FOR a Toyota vehicle.