I sold car parts for several years. Many wipers are universal fit and come with several adapters to fit different applications. Some are exact fit and only fit specific applications. That's what you should be looking for when buying them for your MH. Pick up a set of the universal fits and the right adapter should be in the package. I'd give a place like Advance Auto, Autozone, or Napa a try instead of Walmart. The guys working at most of these stores will help you out and get you the part you need. During my years working retail auto parts, I installed wipers and batteries in several MH's, hundreds or cars, trucks and even a hearse. LOL. Next time, give one of these places a try.