Oregon 98-084 Cub Cadet Replacement Lawn Mower Blade 14-7/8-Inch with 'Y' Center Hole Length: 14-7/8-inches Center: 5/8 'Y' Center hole. The Oregon 'Y' center hole will fit exactly on the 6 point star on MTD built blade spindles Plane Type: Formed Replaces Cub Cadet 742-04124 & 942-04124 X-Tended Cutting Length- longer cutting edge