The Pin Shaft Assembly (OEM Part No. RD201-2157-3) is a mechanical spare part designed for secure pin and shaft connections in mining and heavy-duty equipment. Manufactured from durable steel, the assembly provides reliable mechanical connection and positioning between moving or structural components. The RD201-2157-3 pin shaft assembly is designed to withstand mechanical loads, vibration, and demanding operating conditions commonly encountered in mining machinery. It is suitable for equipment maintenance, repair, and replacement applications where reliable connection performance and dimensional compatibility are essential. This aftermarket replacement pin shaft assembly provides a practical solution for restoring mechanical connections and supporting the continued operation of compatible mining and construction equipment.