Description Reviews MINI Clutch Slave Cylinder for Gen 3 - The slave cylinder is one of the hydraulic components of the clutch system. When the clutch pedal is depressed, the clutch is disengaged by movement from the slave cylinder. When servicing the clutch, sometimes it's best to have all the parts on hand to do the job right and get the car back on the road. A part that we see failing from time to time, is the slave cylinder. There is a 70% chance that it's going to be just fine. Although you may not have had a problem to start with, just by removing the part from the transmission, it may fail. Unfortunately, sometimes these parts fail when you least expect it. You're likely not going to find one of these at your local parts store in stock; it's a very specialized item for the MINI. During replacement, brake fluid and a pressure bleeder will be required for proper service. Note: This part is a MINI OEM part. OEM Part #: 21-52-6-854-659 21 52 6 854 659 21.52.6.854.659 21526854659 Fits the following vehicles: MINI F56 (04/2013 — 12/2019) MINI F55 (09/2013 — 12/2019) MINI Clubman F54 (11/2014 — 07/2019) MINI Clubman F54 LCI (06/2018 — 12/2019) MINI Cabrio F57 (11/2014 — 12/2019) MINI Countryman F60 (11/2015 — 12/2019)