One (1x) New Aftermarket Replacement Toothed Mulching BladeFits John Deere Tr...One (1x) New Aftermarket Replacement Toothed Mulching Blade Fits John Deere Tractor Models: Z830A & Z840A Tech Info: For 60 Cut 7 Iron Decks 3 Blades Required per Machine 21 Long 29/32 CH 2-1/2 Wide 0.25 Thick Replaces Part Number: M131958 All OEM...more