This is a OEM MINI Cooper S Clutch Throw Out Bearing. Most clutch kits already come with a new one, but a few do not, so we are offering it as needed. We always list in the clutch kit descriptions if it does or does not come with one. If it doesn't, we always provide a link. Normally if you are replacing this item, you want to replace the whole clutch unit due to high labor costs. If you decide to replace this part on it's own, which is the most failed item in the clutch system. Don't forget to replace the throw out bearing guide tube and add some quality fluid.