You are buying 1 x 30mm Dust Cover Bore/Fluid seal Brembo 20.4872.41 Plus Silicone Grease Make Model Type Year From Year To Porsche 944 2.5 Turbo Coupe 1985 1991 Porsche 944 2.5 Turbo Convertible 1990 1991 See Compatibility List for Full Details Models with BREMBO 4 piston (2 x 28mm and 2 x 30mm dia.) calipers This is for one of the two 30mm pistons.
