LUCAS LRT00234 STARTER MOTOR BMW MINI R50, R52, R53 ONE COOPER COOPER S WORKS. R50, R53 2001 -2006 One, Cooper, Cooper S, Works. Please note there are different size fly wheel contact wheels for mini starter motors.
Please check that yours has same size / shape cog wheel as this one before ordering as shown in last pic, this is the lower fatter type.