This complete set of original Alcon stainless-steel pistons and seals will rebuild one CAR4949H06 4-piston racing brake caliper, used on the front axle of E46 M3 models.
Kit Contents:
(2x) 41.3mm stainless piston
(2x) 38.1mm stainless piston
(2x) Seal for 41.3mm piston
(2x) Seal for 38.1mm piston
