Gator Mulcher 3-N-1 Lawn Mower Blade For Cub Cadet 17.815-Inch 742-04053A 91-938Product ReviewP Click on the link for more reviewsPReplaces OEM No. 742-04053APBlade length (measured diagonally): 18.1-inchPBlade width 2.5-inchPBlade center hole diameter 0.724 Y Outer hole: Outer hole:0.