The Knorr-Bremse K008019 is a genuine OEM piston repair kit specifically designed for Knorr-Bremse LP490, LP491, LP492, LP493, LP494, LP495, LP496, LP497, LP498, and LP499 series air compressors. This comprehensive kit includes all necessary components, such as the piston, piston rings, and gaskets, required for a complete overhaul of the compressor's piston assembly. It is engineered to restore the compressor's efficiency and reliability, crucial for maintaining the air brake and auxiliary systems in various commercial vehicles, including trucks and buses from brands like Mercedes-Benz, MAN, DAF, Volvo, Scania, Renault, and Iveco. The piston has a diameter of 92 mm, ensuring a precise fit and long-lasting repair.