I found the part I needed without difficulty and ordered it from an easily navigated website. It was delivered in a timely fashion.
Motor mount assy for: 4000 sd/sm/dd/dm,
Motor mount assy for: 4000 sd/sm/dd/dm, 43/48/54rld, 5000 sd/sm, 4001 sd/dd & 4000 rld4/crld4 o/s wh8ar
Buy this part and as many parts as you like and pay only $9.99 shipping, within the Contiguous United States.