Arnold MTD Snow Thrower Ignition Key Replacement snow thrower ignition key Fits most snow throwers equipped with 4-cycle Tecumseh engines For Troy-Bilt, MTD, MTD Gold, Huskee, Bolens, White Outdoor, Yard-Man and Yard Machines units Replaces MTD models 725-1660 and TEC 322200 Replacement snow thrower ignition key Fits most snow throwers equipped with 4-cycle Tecumseh engines For Troy-Bilt, MTD, MTD Gold, Huskee, Bolens, White Outdoor, Yard-Man and Yard Machines units Replaces MTD models 725-1660 and TEC 322200