Blade for lawn tractor lawn mower 400 1 TYPE for 36" deck from 1988 to 1997 A: 467mm B: 10mm C: 8mm D: 63.5mm E: 4mm F: 75mm A: Diagonal blade length B: Centre hole dia. C: Centre hole dia. D: Centre hole dia. D: Positioning hole dia. E: Blade thickness F: Blade width MTD Code: R302612 Original Code: 7420496 9420496 AT