MTD 687-02539 Adapter Assembly, 7/8" ID Genuine OEM MTD Part Fits Various MTD Models Including: MTD 12A-A03M700, MTD 12A-A03Z758, MTD 12A-A0BE700, MTD 12A-A13J029, MTD 12A-A13K229, MTD 12A-A13K729, MTD 12A-A14O029, MTD 12A-A14X229, MTD 12A-A1BA729, MTD 12A-A1JC006, MTD 12A-A1JY701, MTD 12A-A1M9001, MTD 247.37440 (12A-A23P799), MTD 247.37440.1 (12A-A2BR799), MTD 12A-A2K7231, MTD 12A-A2M7031, MTD 12A-B29Q701, MTD 12AEB2JA001, MTD 12AEB2JZ001, MTD 12AEB2JZ701, MTD 247.37440.1 (12A-A2B8799), MTD 247.37700.1 (12A-A2B8799) 7/8" ID