Description Reviews MINI Cooper Camshaft Rectangring. These are new seals for the end of the camshaft to seal oil pressure at the end of the cam to direct oil pressure to the vanos sprocket. Will work for all engines and all models in the Gen 2 model line up. Cooper or Cooper S, N12, N14, N16, or N18. Sold in sets of 2. N14 Cooper S only takes 1 set on the Intake camshaft. ALL other motors require 2 sets, 1 for the Intake cam and 1 for the exhaust cams.