Oregon 599-133, BLADE, GATORB G5B SNAPPER 18-1/2 IN 6PK GATORB G5B Also Replaces: DIXON: 1352, 539115245 MASSEY FERGUSON: 1737252 SIMPLICITY: 1653975, 1656043, 1657589, 1657589A, 1657589ASM, 1657589SM, 1671593, 1671593A, 1671593ASM, 1671593SM, 1737252, 1737252A, 1737252AYP, 1737252BM, 1737252BMA, 1737252BZ, 1737252BZYP, 1737252SM, 1737252YP, 71657589, 71671593 SNAPPER: 1657589A, 1657589ASM, 1671593A, 1671593ASM, 1737252, 1737252A, 1737252AYP, 1737252BM, 1737252BMA, 1737252BZ, 1737252BZYP, 1737252YP Product Code:599133