Cylinder liner for Scania D7A/ B

The cylinder liner, part number 477811, is a component for Scania D7A/ B engines. This cylindrical part is inserted into the engine block to provide a defined surface for the piston to travel along during the combustion cycle. It acts as the interface between the moving piston rings and the engine block, managing the thermal and mechanical loads generated during operation. By maintaining the correct internal geometry, the liner supports the sealing of the combustion chamber, which is necessary for maintaining engine compression and overall efficiency.

This component is compatible with Scania D7A/ B engine models. It is engineered to meet the specific dimensional requirements of the engine block to ensure a proper fit and heat transfer to the cooling system. Proper installation of the liner is necessary to maintain the seal between the piston rings and the cylinder wall, which prevents pressure loss and oil consumption issues.

Cylinder liners are used in internal combustion engines to form the cylinder bore. They facilitate the movement of the piston while protecting the engine block from direct friction and heat. The liner also assists in transferring heat from the combustion process to the engine coolant passages, helping to regulate internal temperatures.