Model # 917175258 Official Craftsman gearcase

Part #850848

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

Part #48373

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

Part #57072

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

Part #86447

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 #137053

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

Part #175257

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

Part #17490416

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

Part #137051

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