The drain plug and the oil bolt are high quality. They are much nicer than OEM and should increase the over all life of my scooter. The 3rd bolt for the final transmission does not fit flush and causes the oil to slowly leak. I guess I should have used the washer from the OEM part. I will have to play around with it. Either way the kit is a nice edition. I would also recomend the k&n air filter.