This Febi Bilstein Brake Master Cylinder is designed to meet OE matching quality and fit standards. It is suitable for various MINI models including ONE (R50), Cooper (R50), Cooper (R52), Cooper (R53), and One (R52). The product features an inner diameter of 22.2 mm, is made of aluminium, and has a weight of 0.582 kg. Please use the vehicle identification tool to confirm compatibility with your specific vehicle before purchasing. All restrictions must be observed. For any queries regarding fitment, please contact us. The part is designed for original intended use and should be installed by a competent individual. Note: products are usually supplied without fitting instructions. OE numbers for comparison: Mini (BMW): 34 33 6 785 667.