kz4331rm KNORR-BREMSE Twin Cylinder, Air Compressor

The heavy-duty twin cylinder air compressor is a vital component in the pneumatic systems of heavy commercial vehicles, ensuring consistent air pressure for braking and suspension functions. This unit is engineered with high-strength components to withstand demanding operational environments and maintain long-term reliability within the air brake system.

KZ4331RM is the OE-equivalent of the KNORR-BREMSE KZ4331RM Twin Cylinder, Air Compressor used in KNORR-BREMSE systems. This precision-engineered part features a 75.00 mm cylinder bore and a 50 mm stroke, delivering a swept volume of 440cm³. The integration of the ESS feature and water-cooled valve plate ensures thermal stability during intensive use.

For workshop technicians, this component offers seamless integration with existing pneumatic architectures. The unit is equipped with M26x1,5 air inlet and outlet ports, alongside M16x1,5 water inlet and outlet ports to facilitate efficient thermal management. Maintenance should focus on checking the water cooling paths and ensuring all connections are secure to prevent pressure drops or overheating.

This assembly is specifically designed for heavy-duty applications where consistent air delivery is critical. The through-drive design and robust construction make it an ideal choice for fleet maintenance and professional workshop repairs.