The early versions of the XLR-350 used a Fasco D326 front mount motor until 1983.
After 1983 it switched to our standard 522004 convection motor. �
To replace the Fasco motor you would need the following parts as long as your existing convection system has an 8" x 8" fan plate that unbolts from the liner.�
Early models that do not have the 8" x 8" do not have a retrofit solution available for the convection motor.
591002 Fan Motor Mount Plate Bracket
073005 Fan Motor Mount Plate Gasket
084001 Insulation Board
512005 Convection Motor Wall Plate /� Inner Plate (goes on then then insulation board goes on then fan mount plate goes on)