Brand New (6) Pack of G6 Gator Mulcher Mower Blades… (6) Pack of G6 Gator Mulcher Mower Blades Replaces John Deere Part #’s TCU15881, M144196 (3) Required for 60″ Cut, 7-Iron Deck Blade Length: 21″ Center Hole: 7/8″ Width: 3″ Thickness. 250 Oregon Part # 396-730Supercedes Old Oregon Part # 396-742. 6 Pack Oregon 396-730 G6 Gator Mulcher Blade for John Deere TCU15881 M144196. Brand New (6) Pack of G6 Gator Mulcher Mower Blades.. (6) Pack of G6 Gator Mulcher Mower Blades. Replaces John Deere Part #’s TCU15881, M144196. (3) Required for 60 Cut, 7-Iron Deck. Oregon Part # 396-730. Supercedes Old Oregon Part # 396-742. This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.