Description Reviews MINI Oil Drain Plug for all Generation 2 cars. This is a quality aftermarket part to save you some money. This is the stock oil drain plug that would be needed if something should happen to yours. This is a very low fail rate on this part and we hardly ever have to replace it, but have had a few people ask for them. This doesn't normally need replacing unless there is damage to the treads or the internal allen socket. It comes with everything shown in the photos, the needed crush washer comes with the oil filter!