Description Reviews MINI Cooper Clutch Slave Cylinder Line / Hose - for all Gen 3 manual transmission cars. Connects from the output cylinder (slave cylinder) to the main clutch fluid pipe on top of the transmission. We usually see this line fail for two reasons. One is the vehicles in northern states see inclement weather, the line will get stuck inside the slave cylinder due to corrosion build up around it and will break off. The second reason would be when removing the line from the slave cylinder, the small o-ring like seal comes off the connecting end and remains in the slave cylinder. That seal is required to keep things from leaking. If you need just the seal you can get that here! Brand new OEM part so you know that it will fit the first time! OEM Part #: 21-52-6-866-077 21 52 6 866 077 21.52.6.866.077 21526866077 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)