This is a hard to find 20 tooth brass auger gear from a Bolens 824 snowblower in excellent used condition. Oem Bolens Troy Bilt 824 Snowblower 20t Brass Auger Gear 1720933 Obsolete. Check out our entire store for more great products and deals! We do however make every possible attempt to accurately describe the inventory we sell and stand behind it. Since 2016, 8TEN Industries has been a leading asset recovery provider supporting national retailers, brands, and manufacturers. Our 60,000 square foot processing and distribution facility located in Cass City, Michigan has allowed us to become industry leader in turning difficult problems for manufacturers into great deals for our customers.