For sale is a new OEM Genuine MTD Cub Cadet 20 Tooth snowblower auger worm gear. This gear is part number 917-04861. This part number also replaces 917-0528, 717-04449, and 717-0528. The gear is 1-7/8" outside diameter, 3/4" hole, 5/8" thick, and has 20 teeth. 

Please be sure this is the correct part before ordering.