Enviro Auger Brass Bushing & Plate for Post Jan 2008: 50-1780

Genuine Enviro Replacement Auger Brass Bushing with 5/8" ID and Plate Assembly for Select Models Made After 2008, See Compatible. 

The stove's year of manufacture is printed on the back of the stove or under the hopper lid. If your unit was manufactured before January of 2008, you need this part instead.