LK4921 KNORR-BREMSE Twin Cylinder, Air Compressor

The twin cylinder air compressor is a critical component designed to provide consistent pneumatic pressure within the heavy commercial vehicle braking system. This high-strength component ensures reliable air production through its robust internal architecture, optimized for long-term industrial service.

LK4921 is the OE-equivalent KNORR-BREMSE twin cylinder air compressor used in KNORR-BREMSE systems. This unit features a cylinder bore of Ø88.00 and a 50 mm stroke, delivering a swept volume of 608cm³. It is engineered to meet strict technical standards for compatibility and performance.

For workshop technicians, this part offers precise assembly with its specific port configurations, including an M26x1,5 air outlet and M16x1,5 water inlet/outlet ports. The water-cooled design and ESS feature integration ensure stable operation under heavy-duty thermal loads. Regular maintenance of the cooling lines and checking the through-drive integrity is recommended to maintain optimal system pressure.

VADEN ORIGINAL products are manufactured to ensure seamless integration into professional vehicle service workflows, providing a dependable solution for air brake system maintenance.