MaxPower 561545X Commercial Mulching 3-Blade Set to Replace MTD/Cub Cadet/Troy-Bilt 742-04053, 742-04053A, 942-04053-X, 942-04053A, and Many Others Replaces MTD/Cub Cadet 742-04053, 742-04053A, 942-04053, 942-04053A Fits 50" Cut RZT series Tractor Made in USA 3 Blades included Center hole designed to fit MTD 6 point star