Replaces part numbers: DC28000CMF0 DC2800099F0 DFS531205HC0T DC28000YILISHUN 0XVXVH.Fit for:DELL ALIENWARE M17x R3 R4 Series.Note:This Laptop CPU Cooling Fan is not original parts, the mention of brand names and any related model designation above is only for purposes of demonstrating compatibility.NO installation instruction and recommend professional installation.