KZ642 KNORR-BREMSE Twin Cylinder, Air Compressor

The technical role of this Twin Cylinder, Air Compressor is to provide a consistent and reliable air supply for the pneumatic braking systems of heavy commercial vehicles. Engineered with a dual-cylinder configuration, it ensures high-pressure stability essential for safe vehicle operation. The unit is specifically designed to withstand heavy-duty operating conditions through its robust construction and optimized thermal management.

KZ642 is the OE-equivalent of the KNORR-BREMSE Twin Cylinder, Air Compressor used in KNORR-BREMSE systems. This component features a 75.00 mm cylinder bore and a 50 mm stroke, delivering a swept volume of 440cm³. Its technical specifications include an M12x1,5 air unloader port and M18x1,5 water inlet/outlet ports, making it a precise replacement for original equipment requirements.

For workshop technicians, this compressor is designed for straightforward installation within the pneumatic system. The unit utilizes water cooling (W) and includes a water-cooled valve plate to maintain optimal operating temperatures. Maintenance should focus on ensuring the integrity of the M18x1,5 water connections and checking the ESS feature functionality to prevent system downtime during long-haul operations.