HP guide description: "Heat sink (includes replacement thermal material): For use only on HP EliteBook 850 G2 Notebook PC and HP EliteBook 750 G2 Notebook PC computer models equipped with a graphics subsystem with UMA memory". OEM documentation only; not bench-tested.
Source notes
HP EliteBook 850 G2 Notebook PC / HP EliteBook 750 G2 Notebook PC / HP ZBook 15u G2 Mobile Workstation Maintenance and Service Guide, printed p32 (PDF p42): "803018-001".