You may also like. 1 x Worm Gear as pictured. MTD Cub Cadet 20 Tooth snowblower auger worm gear. (Please refer to compatibility chart for details). Hope you can understand. In the event the item should fail due to manufacturing defects during intended use, we will replace the part by free. If you are not satisfied, please let us know before leaving feedback! This product can expose you to chemicals including Chromium (Hexavalent Compounds). Which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information, go to California goverment website, you can search California P65Warnings.