MINI Cooper S Transmission Shaft Seal for all R52/R53 Getrag 6 speed units. This seal doesn’t fail a lot, but as the cars get higher in miles the seals can wear out. If you're planing on doing a clutch or an LSD this might be a cheap seal to have on hand cause your local parts store is not going to have it. It fits under the throw out bearing guide tube that has to be replaced every time you do a clutch. This seal is very deep inside the motor transmission section so it's a hard seal to get to later. This is a brand new seal that is MINI OEM and is 26x40x7.1mm in size.