Tank For Cooper R55 R56 R57 R60 2007-2016. For 2007-2016 Cooper R55 R56 R57 R58 R60 R61. FOR MINI COOPER. Aluminum Radiator Coolant Water Overflow Expansion. FOR CAR Coolant Expansion Tank. Precise Design :Well - engineered structure with tight - fitting components, effective for coolant storage and circulation.