Compatible with Craftsman model: 24788787, 247888301, 247889703, 247886912, 24710568, 24788771, 247889701, 24788791, 24788691, 24788830, 24788957, 24788955, 24788999 28", 24788690 28", 247881900, 247887900 Compatible with Troy-Bilt model: 23AABA6X711 (2015) Flex, 23AABA6X711 (2016) Flex, 23AABA6X711 (2017) Flex, 31AH5DR5711 (2016) Storm 3090xp, 31AH74P4766 (2016) Storm Tracker 2890, 31AM59P4766 (2017) Storm 2890, 31AM5CP3766 (2017) Storm 2690, 31AM63P2766 (2015) Storm 2420, 31AM5CR3711 (2017) Storm 2690, 31AH74P4766 (2015) Storm Tracker 2890 Compatible with MTD model: 31AE6AHE722 (2005), 31AE6BHE722 (2005), 31AE6GLF722 (2005), 31AE6LLG722 (2005), 31AH6LKH722 (2005), 31AH5ZLH704 (2008), 31AH6ZLG704 (2008), 31AM63LF704 (2008), 31AE5KLF795 (2006), 31AE5KLF795 (2007), 31AE5MLH795 (2007), 31AE6BHE718 (2005-2), 31AE6GFF795 (2007), 31AE6GLF795 (2006), 31AE6LFH718 (2005), 31AM62KE704 (2008), 31AE5KLF304 (2006), 31AE5KLF372 (2006), 31AE5KLF401 (2006), 31AE5KLF720 (2006), 31AE5KLF730 (2006) PRECISE FIT: Engineered to exact specifications ensuring proper alignment and operation with existing snow blower components REPLACEMENT PARTS: Includes both 917-04126 worm shaft and 917-04861 worm gear components for complete drive system repair DURABLE CONSTRUCTION: Made from high-quality steel components designed to withstand heavy-duty snow clearing operations Replacement part: 717-04126 917-04126 71704126 91704126