For some reason, it is typical for motorhome headlights to perform poorly, especially on low beam. It also is typical for the headlights to be poorly aimed on delivery. It would definitely be worth it to have your headlights checked/aimed by a truck service place with the equipment to do it properly. New lights, even if "better" lights, if poorly aimed will not perform well either.
When I had mine adjusted, they told me they are originally very high and to the right. The adjustment did help, but did not make my low beam lights as good as I hoped for. I have seen the same comments from many other owners.
Many have made bulb changes, but if you do that you need to take care that the new bulbs do not put out excessive heat as many after-market "brighter" bulbs will, which can easily damage/melt the headlight fixture. I went for HIR bulbs for the low beam. They helped some, but still are not great.
If in fact changing the whole fixture would for some reason provide better performance, Winnebago Owner Relations should be able to tell you exactly what headlight your coach has. After you get their info, verify it yourself before you order something cannot return.
Paul (KE5LXU) ...was fulltimin', now parttimin'
2003 Winnebago Ultimate Advantage 40e
towing 2017 Jeep Grand Cherokee Limited
Blog at www.pjrider.com