Here is the information i used when repairing the steps on my BIL's Monaco Dynasty.
I called a large RV parts dealer in Texas, and told him that I needed a motor for a 32 series Kwikee step. He said that I could not get just a motor that I would have to buy the complete kit that included the controller, gear box and motor as a matched kit. The cost was $209 for the kit. I told him that I had heard that the motor was a window lift motor. He said that he had not heard that and that he doubted that information.
I did research and found that by looking on the NAPA internet site they had photos of the lift motors. I found that a 1986-1995 Ford Taurus left front window lift motor matched my motor. NAPA part # BK655-1395 $63.99 I ordered my motor from Auto-Zone Manufactured by Dorman part# 742-206. This has a lifetime Warranty and was $49.99.