MOWER BLADE FOR LAWN MOWERS MOWER MODELS: 11A-H65E603 11A-H65E650 11A-LA0G600 11A-LAM8600 11A-LAM8659 12A-H65E650 12A-LA0G600 12A-LAM8600 AMBITION 420 AHW 420 HHW EXPERT 42 B 42 BA EXPERT 420 420 A MTD 42 SB OPTIMA 42 PB SELECT 4200 4200A SMART 42 PO SMART 42 SPO LENGTH 419 mm Ø CENTRAL HOLE: STAR Ø LATERAL HOLE: 8. 0 mm SIDE BORER INDEX: 63.5 mm MTD Part No.: 122-264 Original Part No.: 742-04396 742-04396A 742-04396B CZ