The cost depends on a lot of factors such as:
MSRP of the RV
Frequency of claims for that model
Type of claims for that model
Type of coverage chosen (i.e. replacement cost or ACV)
Options included in the coverage
Any contents coverage desired
State of residence
Type of driver's license e.g. if you have a CDL your rates will be significantly less expensive
Driving record of the listed drivers
Age of RV
Sale price (actual price paid for purchase)
There can be other factors such as if an RV is owned by an LLC it would be considered "commercial" rather than "personal" and would require commercial insurance. Some companies have better claims experience with RVs than other companies do an thus charge lower rates. This means it is very difficult if not impossible to generalize about insurance rates for RVs in general. It is possible to determine if a particular model is more or less expensive than average to insure in a particular zip code at a particular company. The best thing to do is to get the VIN number and ask for quotes from several insurance companies. Many automotive insurance companies do not understand RVs very well and try to fit them into a "car" or "auto" policy and it is difficult to do so and you can have poor claims experience.
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