Exact replacement - read instructions first, makes replacement easier. Old fan did not test bad but would start, and then stop running and lock up when power was on; This was an exact fit with instructions, works great! Took about 4 hours because of disassembly and cleaning coils at the same time; have metalic duct tape available to reseal seams. Could do it in 1 to 2 hours now after experience and without cleaning.
I ordered a new fan motor for my Duo Therm AC, the fan motor came well packaged and ready to install. I was very satisfied with the ease of my purchase and the Dyer's service.