LP4857 KNORR-BREMSE Twin Cylinder, Air Compressor

This high-strength twin cylinder air compressor is engineered to provide reliable pneumatic pressure within heavy commercial vehicle braking systems. Designed for rigorous operational environments, it ensures consistent performance through its robust internal architecture and precision-engineered components.

The LP4857 is the OE equivalent of the KNORR-BREMSE LP4857 Twin Cylinder, Air Compressor used in KNORR-BREMSE systems. This specific unit features a cylinder bore of Ø86.00 and a 40mm stroke, delivering a swept volume of 460cm³. The component is optimized for water-cooled applications, utilizing M26x1,5 ports for air intake and outlet to maintain optimal thermal regulation during high-duty cycles.

For workshop technicians, this unit provides seamless integration with existing heavy-duty pneumatic circuits. It includes an integrated ESS feature and a water-cooled valve plate to enhance thermal stability. Precise installation requires verifying the M18x1,5 water inlet/outlet connections and the M12x1,5 air unloader port to ensure the system operates within factory specifications.

Regular inspection of the water cooling lines and air port seals is recommended to maintain maximum service life. Proper maintenance of the pneumatic system ensures this compressor continues to meet the demanding requirements of heavy commercial transport applications.