Genuine Ariens remote wheel lock cable, part number 06900302. 

This is a common part on the following Ariens Sno-Thro models: 921002, 921003, 921004 921005, 921006, 921007, 921008, 921009, 921010, 921012, 921013, 921015, 921016, 921017, 921018, 921020, 921023, 921301, 921302, 921303, 921304, 921305, 921306, 921307, 921308, 921309, 321312

Note: Verify required part number in owners manual - this part may may differ based on serial number range!