CPU Heatsink Radiator for Z820 Workstation — Replacement for 635868-001 / 636164-001

Replacement CPU cooling heatsink designed for Z820 workstations. This radiator fits CPU chips and corresponds to part numbers 635868-001 and 636164-001. Use it as a direct replacement to restore or maintain proper CPU cooling in your Z820 system. Suitable for repair or service jobs where the original heatsink needs replacing.