FOR Mini W11 W10 One Cooper S JCW R50 R52 R53 Timing Chain Modified Tensioner
Fits: Mini One Cooper S JCW R50 R52 R53 W10B16A & W11B16A Engines. You are buying a Timing Chain Kit With the Latest Specification Tensioner Guide Rail. 1 X"Latest Modified" Tensioner Guide Rail 11 31 8 648 241.