Brake Caliper Pistons. You are buying A complete Rear axle seal piston kit enough for(1) Caliper to fit Make Model Type Year From Year To Audi Q7 Petrol 4LB 2006 2015 Audi Q7 Diesel 4LB 2006 2015 See Compatibility List for Full Vehicle Details ONLY models with 4 pot Brembo calipers 330mm discs only 2 Pistons 28 x 32mm / 2 Pistons 30 x 32mm Plus seals to service 1 rear caliper.
