Cylinder liner for Perkins 4.165

The cylinder liner, identified by part number 89025190, functions as the internal sleeve for the Perkins 4.165 engine. It creates the cylinder wall surface where the piston travels, isolating the engine block from direct contact with the piston rings and combustion gases. By providing a controlled surface for the piston assembly, this component helps maintain the internal environment required for efficient engine operation.

This component is designed for use in the Perkins 4.165 engine model. The actual manufacturer of this part is Perkins. It is engineered to meet the specific dimensional and surface finish requirements of the engine block to ensure proper heat transfer and oil film retention.

Cylinder liners are used in internal combustion engines to provide a replaceable wear surface for the piston. They allow for the restoration of the cylinder bore to original specifications during an engine overhaul without needing to replace the entire engine block. Proper installation ensures that the piston rings can seal effectively against the cylinder wall, which is necessary for maintaining engine compression and preventing oil consumption.