No. Check for available dates to camp thru website. I saw smaller RV's when we were there in July. The areas are rather tight and have limited spaces, even for 2 cars.
It's closed for the season. There are other sites open that are first come first served.
The season dates for this campsite was July 1 through Aug 31. It changes each year but it's closed for 2017. You can learn more on recreation.gov and search Sunset Campground. There are some sites that allow RV's but due to the weather, elevation and proximity to mountains this site closes during its off season. You can reserve your site almost a year in advance at the website mentioned above.
There are camper spaces but not pull-thru. At least, none I noticed. I didn't see any 5th wheels or big Winnebagos. Mostly tents and trailers.
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