647668-001 - HP Processor Heatsink Assembly for WorkStations Z420/z620 647668-001 - HP Processor Heatsink Assembly for WorkStations Z420/z620 $88.85
647669-001 - HP Processor Heatsink Riser Assembly for WorkStation Z620 647669-001 - HP Processor Heatsink Riser Assembly for WorkStation Z620 $117.85
647287-001 - HP CPU Heatsink and Fan Assembly for Z420 / Z620 WorkStation 647287-001 - HP CPU Heatsink and Fan Assembly for Z420 / Z620 WorkStation $104.59
618264-001 - HP (Motherboard) for Z620 Desktop Workstation PC 618264-001 - HP (Motherboard) for Z620 Desktop Workstation PC $335.49
619559-001 - HP (MotherBoard) Dual CPU for Z620 Workstation 619559-001 - HP (MotherBoard) Dual CPU for Z620 Workstation $594.76