As a small pointthat can get to be big, there is some info that you will need if/when you get more into needing specific info on the RV.
Winnebago and Itasca are both kind of "groups"of RV and each group has lots of models in different versions and different lengths!
So when you get into needing info on your specific RV, you will need to tell folks which of many RV you have.
One place tofind that info may beon a labelnear or around the drivers seat and gives all kinds of info that may be needed at some point. One thing beyond knowing which model andlength or model number is the build date or serial number as they often have made early and late models in the same year!
Give this list a look and you will see what I mean:
https://catalog3d.winnebagoind.com/menu/Parts.htm
Lots and lots of choices if you need something on your specific RV as they change frequently, far more than cars do! Also as a point to keepin mind, RV are often built on a chassis which is ordered by the RV builders and that may be a year older than the "official" year of the RV. A 1995 may actually be riding on a 1994, so if you want to replace something like brake pads, you need to know that it may be for a Ford F53, etc but for a 1994!
Sometimes tricky to pin down exact info so if you went to an auto parts store for a book on the chassis to find help on fuses, knowing which chassis and what year is going to be important.
Good luck on the chase!