Oregon 596-333 G5 Gator Mulcher Blade 18-1/2" Length, Pack Of 3 Replaces the following OEM Part Numbers: Cub Cadet 490-110-C121, Cub Cadet 742-3013, Cub Cadet 742-3013-0637, Cub Cadet 759-3820, Cub Cadet 759-3857, Cub Cadet OCC-742-3013 G5 Gator Mulcher Blade Length: 18-1/2", Center Hole: 3/4", Width: 3", Thickness: 0.203" ,Offset: 1/2", Air Lift: 1"