MAN
Cylinder liner for MAN
This cylinder liner provides the internal sliding surface for the piston and rings within the engine block. It is designed for use in MAN industrial engines found in heavy machinery.
Specifications
- Part number
- 51012010452
- Brand
- MAN
The cylinder liner 51012010452 serves as a replaceable cylindrical sleeve inserted into the engine block. It creates a controlled environment for the piston assembly, acting as the primary sliding surface for the piston and its rings. By separating the piston movement from the engine block casting, the liner protects the block from direct contact and wear. It also plays a role in heat transfer, moving thermal energy from the combustion process toward the engine cooling system while maintaining a seal for the combustion chamber.
This component is engineered for specific MAN engine configurations. Proper installation ensures that the piston maintains correct clearance and compression levels during operation. The internal surface finish is designed to support lubrication and minimize friction between the moving parts. When replacing this component, it is important to verify compatibility with the specific engine series and block dimensions to ensure a correct fit. This part is manufactured by MAN.
Cylinder liners are used in internal combustion engines to define the cylinder bore. They allow for the restoration of engine geometry without replacing the entire block, providing a renewable surface that can be serviced during major engine overhauls.

