Model # 917751001 Official Craftsman gearcase

Part #53838

The manufacturer no longer makes this part, and there's no substitute part

Part #750436

The manufacturer no longer makes this part, and there's no substitute part

Part #77039

The manufacturer no longer makes this part, and there's no substitute part

Part #850848

The manufacturer no longer makes this part, and there's no substitute part

Part #83720

The manufacturer no longer makes this part, and there's no substitute part

Part #88386

The manufacturer no longer makes this part, and there's no substitute part

Part #83659

The manufacturer no longer makes this part, and there's no substitute part

Part #77881

The manufacturer no longer makes this part, and there's no substitute part

Part #48032

The manufacturer no longer makes this part, and there's no substitute part