Oregon 396-770 Gator Mulcher G6 Blade for 48-Inch Cut for 7-Iron Deck on John Deere Lawn Mowers Replaces OEM No. M136184 and M136194 Order 3 for a 48-inch cut Blade Length (Measured Diagonally): 17-3/64-inches Center Hole Diameter: 29/32-inches Width: 3-inches, Thickness: .250-inches