Genuine Rear Trailing Arm Kit Set R53 R52 R50 Upgrade Conversion. Mini Cooper S R56. OEM Part number : 6780001 / 6780002 / 6799087 / 6799088 / 6768724 / 6768726 / 6851501 / 22270185 / 22270186. There is a picture with a part number! Please verify fitment by the part number provided.