Spring brake cylinder | KNORR-BREMSE K004047 Mercedes-Benz 016 420 0818 020 420 4518 | KNORR-BREMSE K004047 Mercedes-Benz 0164200818 0204204518 | 24 Piston 15 mm Stroke 64 mm M16 x 1.5 M22 x 1.5 | Mercedes-Benz Actros/Antos/Arocs/Axor 739.500/510/520 |