LK4951 KNORR-BREMSE Twin Cylinder, Air Compressor

The heavy-duty Twin Cylinder, Air Compressor is a vital component within the pneumatic braking system of heavy commercial vehicles. Designed to provide consistent air pressure and reliable performance, this unit utilizes a water-cooled architecture to ensure optimal thermal management during operation. Its robust construction is engineered to meet the rigorous demands of professional workshop environments and long-haul transport fleets.

LK4951 is the OE equivalent of the KNORR-BREMSE LK4951 Twin Cylinder, Air Compressor used in KNORR-BREMSE systems. This specific component features a dual-cylinder configuration with a 720cm³ swept volume and a precise Ø86.00 mm bore. It is designed to maintain high-pressure stability within the air brake system, ensuring that the vehicle's braking-related pneumatic functions remain responsive under heavy loads.

For workshop technicians performing routine maintenance or repairs, this air compressor offers direct compatibility with existing hardware. The unit includes an integrated water-cooled valve plate and features standard M26x1,5 ports for both air inlet and outlet to facilitate seamless installation. Regular inspection of the water inlet and outlet ports is recommended to ensure the cooling efficiency of the two-cylinder system remains at peak levels.

This component is specifically engineered for heavy commercial vehicle applications where high-strength components and precise tolerances are required. By maintaining strict adherence to technical specifications such as the M10x1 air unloader port and M18x1,5 water ports, this part ensures long-term operational reliability in demanding service environments.