MTD 984-04027A Complete Auger Assembly 21-Inch with Solid Shaft 21-inch with solid shaft MTD original equipment part 90-day warranty for defects in material or workmanship Replaces 684-04025, 684-04025-0637, 684-04025A, 684-04025A-0637, 684-04027, 684-04027A, 706-15686-00-11, 784-5335, 784-5485, 784-5485-0498, 784-5485-0662, 784-5485-0688, 984-04027, 984-5485 and 984-5485-0637