Oregon 91-183 Exmark Heavy Duty Replacement Lawn Mower Blade 16-1/4-Inch 16-1/4" Length, 5/8" Center, 2.5" Width, 0.250" Thickness, 1" Lift Replaces Exmark #103-2527, 103-6583, 103-6583-S, 1-323515, 1-403026, 1-403059, 403059 Exmark (3) for 48" Cut, Heavy Duty Blade Also replaces Husqvarna #539100340, 539-1003-40, 539118420, 539-1184-20 Also replaces Snapper # 7017036BMI, 7017036BMYP, 7017036YP, 77378, 77377, 76675, 7077378, 7076675, 7017036, and 7-6675