http://tinyurl.com/mh4nuyf
Oregon Lawn Mower Blade For John Deere 19-4/2-Inch Mulching M112991 91-403Product Review
Click on the link for more reviews
Replaces OEM No.M112991
Blade length (measured diagonally): 19.6-inch
Blade width 2.5-inch
Blade center hole diameter 0.71-inch
