York International Corporation 364-36603-000 Piston

The York 364-36603-000 Piston is a 3-3/4 inch, J-Type mechanical compression component designed for internal installation in York HVAC chillers and compressor units, where it transfers mechanical force within the cylinder to drive refrigerant compression. Built from a high-strength industrial alloy for operation in high-pressure refrigeration systems, it supports reliable compression cycles in industrial HVAC and refrigeration applications such as chillers, compressor packages, and process cooling systems. This part, with Manufacturer Part Number 364-36603-000, is intended for repair, retrofit, expansion, or replacement to restore compression efficiency and maintain system performance in York chillers and compressor units; common replacement part numbers include 364-36602-000, 364-36604-000, and 364-36590-000.