Oregon 98-631, GATORB G3B MTD 21 98-931 GATORB G3B Also Replaces: MTD: 742-0641, 7420641, 742-0741, 7420741, 942-0641, 9420641, 942-0741, 9420741 TROY-BILT: 742-0641, 742-0741, 942-0641, 942-0741 Product Code:98631
