I ordered parts for my electric smoker and they came promptly. The parts even had instructions on how to change them.
Wh2906 blower wheel
Wh2902-05 galvanized, he2911-2913, hw28, hw29 diameter and height both 8 1/16 " o/s wh4bl
Buy this part and as many parts as you like and pay only $9.99 shipping, within the Contiguous United States.