I can't think of a single time a mechanic or shop has given any details about the manufacturer of a part, just "do you want the expensive shit or the cheap shit

I can't think of a single time a mechanic or shop has given any details about the manufacturer of a part, just "do you want the expensive shit or the cheap shit". Of course in the auto parts world virtually everything is aftermarket not OEM and there isn't a monopolistic manufacturer trying to enforce their bullshit on repair shops.