Replace For Part Number: 742P05510-X 742-05510-X 490-110-C203 490-110-Y203 CMXGZAM110203 Compatible With Cub Cadet with 46 inch Decks: Enduro Lawn Tractors XT1-LT46 XT2-LX46 Ultima Zero Turn Mower ZT1-46 ZTS1-46 Compatible With Troy Bilt with 46 inch Decks: Super Bronco 46 XP Mustang Z46 Compatible With Craftsman with 46 inch Decks: T2400 Z5400 Z5450 Note: This blade is NOT OEM blade. The OEM number is just for your help in looking for the blade and belt you need!