Rotary 9907 High Lift Blade, Pack Of 3 Replaces Part Numbers: AYP/Roper/Sears - 173920, 180054, 532180054; Husqvarna - 532173920, 532180054 Fits AYP Models: GTH2548, LT2323A2, YTH2148, YTH2448, 3 For 48" Cut; Husqvarna Models: 3 For 48" Cut; Sears/Craftsman Models: 917276022 Center Hole Diameter: 5 PT, Star; Length: 16-5/8"; Thickness: 0.2040"; Width: 2-1/2"