York International 665-25316-000 HVAC Compressor Piston Assembly

York International 665-25316-000 HVAC Compressor Piston Assembly is a precision-machined, high-strength industrial alloy piston designed for internal installation in York HVAC compressor systems and capable of withstanding high-pressure refrigeration environments. As a dedicated refrigerant compression component, it enables controlled reciprocating motion within the cylinder assembly that drives the compression cycle in chillers, industrial compressor units, and process cooling equipment. This part is intended for maintenance, retrofit, and replacement projects in commercial buildings and industrial facilities, offering compatibility with York chillers and compressor units to restore compression efficiency and system reliability. Common replacements for continued compatibility include 665-25315-000, 665-25317-000, and 665-25300-000.