Genuine Tecumseh Peerless Gear 
Part #: 776134

Fits these models and more:
MTD
319-590-000 (1989) Snowblower Parts
Toro
30102 (1000001-1999999)(1991) Lawn Mower
30102 (0000001-0999999)(1990) Lawn Mower
30102 (9000001-9999999)(1989) Lawn Mower
30102 (8000001-8999999)(1988) Lawn Mower
30103 (9000001-9999999)(1989) Lawn Mower
30103 (8000001-8999999)(1988) Lawn Mower
30106 (1000001-1999999)(1991) Lawn Mower
30106 (0000001-0999999)(1990) Lawn Mower
30108 (4000001-4999999)(1984) Lawn Mower
30111 (7000001-7999999)(1987) Lawn Mower
30111 (6000001-6999999)(1986) Lawn Mower
30111 (5000001-5999999)(1985) Lawn Mower
30111 (4000001-4999999)(1984) Lawn Mower
30112 (0000001-0999999)(1990) Lawn Mower
30112 (9000001-9999999)(1989) Lawn Mower
30112 (8000001-8999999)(1988) Lawn Mower
30112 (7000001-7999999)(1987) Lawn Mower
30112 (6000001-6999999)(1986) Lawn Mower
30113 (9000001-9999999)(1989) Lawn Mower
Craftsman
917259180 Lawn Tractor
917259250 Lawn Tractor
917259320 Lawn Tractor
917259470 Lawn Tractor
502254171 Lawn Tractor
502254173 Lawn Tractor
502256020 Lawn Tractor
502256021 Lawn Tractor
502256030 Lawn Tractor
502256040 Lawn Tractor
502256041 Lawn Tractor
502256050 Lawn Tractor
502256060 Lawn Tractor
502256061 Lawn Tractor
502256062 Lawn Tractor
502256070 Lawn Tractor
502256071 Lawn Tractor
502256080 Lawn Tractor
502256081 Lawn Tractor
502256172 Lawn Tractor