LP4851 SP1 KNORR-BREMSE Twin Cylinder, Air Compressor

The high-strength twin cylinder air compressor is a critical component within the pneumatic braking system of heavy commercial vehicles. Designed to provide consistent air pressure, this unit utilizes a robust water-cooling mechanism to maintain stable operating temperatures during intensive service cycles. Its precision-engineered construction ensures long-term reliability in professional workshop environments.

LP4851 SP1 is the OE-equivalent of the KNORR-BREMSE LP4851 SP1 twin cylinder air compressor used in KNORR-BREMSE systems. This technical component is engineered to meet strict dimensional requirements for seamless integration. It features a cylinder bore of Ø78.00 mm and a stroke of 52 mm, providing a swept volume of 500cm³ for efficient air compression.

For workshop technicians and fleet managers, installation requires attention to the M26x1,5 air ports and M18x1,5 water inlet/outlet ports. Ensuring the water-cooled connections are secure is vital for maintaining the thermal stability of the valve plate and cylinders. Regular inspections of the through-drive and port integrity are recommended during routine maintenance to prevent pressure fluctuations in the braking system.