Cylinder Liner

Cylinder Liner (also named Cylinder Sleeve) is core wearable component of internal combustion engine, installed inside engine block to form piston moving channel & combustion chamber. It protects expensive engine block from abrasion, only replace liner after wear instead of whole cylinder block overhaul, greatly save maintenance cost.
Three mainstream types: Wet Cylinder Liner, Dry Cylinder Liner, Finned Air-cooled Cylinder Liner according to cooling mode.