Oregon 98-054, BLADE MTD 16-15/64IN 942-0644 (2) 98-054 & (1) 98-069 for 46" cut, outside blades for 46" cut model series 600 & 800 built since 1997 (3) for 46" cut - star center hole, deep deck, 1997 & after use (2) 98-054 with (1) 98-069 for 46" cut, outside blades for 46" cut model series 600 & 800 built since 1997 Also Replaces: MTD: 742-0644, 7420644, 942-0644, 9420644 TROY-BILT: 742-0644, 942-0644 Product Code:98054