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Adco Olefin HD RV Cover for 5th Wheel Toy Haulers up to 31' Long - All Climate + Wind - Gray

Adco Olefin HD RV Cover for 5th Wheel Toy Haulers up to 31' Long - All Climate + Wind - Gray

Item # AD99ZR
Our Price: $402.12
You Save: $128.24
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Shipping Weight: 38 lbs
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Throw this storage cover over your fifth-wheel toy hauler to protect it while you're storing it for the season. The contoured cover conforms to the shape of your fifth wheel and secures with the integrated straps so it won't flap in the wind. Great Prices for the best rv covers from ADCO. Adco Olefin HD RV Cover for 5th Wheel Toy Haulers up to 31' Long - All Climate + Wind - Gray part number AD99ZR can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (440)
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ADCO RV Covers - AD99ZR

  • Storage Covers
  • Fifth Wheel Cover
  • Toy Hauler Cover
  • 28 Feet Long
  • 29 Feet Long
  • 30 Feet Long
  • 31 Feet Long
  • Gray
  • Best UV/Dust/Weather Protection
  • ADCO
  • All Climates

Throw this storage cover over your fifth-wheel toy hauler to protect it while you're storing it for the season. The contoured cover conforms to the shape of your fifth wheel and secures with the integrated straps so it won't flap in the wind.


  • Cover shields your 5th-wheel toy hauler from the elements during long-term storage
    • Lessens the need for frequent washing, waxing, and roof treatments
    • Extends the life of your 5th wheel and helps maintain resale value
  • White Olefin top panel blocks harmful UV rays that can cause cracking and fading
    • Beads water on contact to eliminate black streaks and corrosion
    • Stops dirt and dust particles from caking onto the surface of your 5th wheel
  • Triple-layer polypropylene side panels are non-abrasive and breathable
    • Gray sidewall design provides your 5th wheel with a contemporary look
  • Contoured design conforms to the shape of your trailer for a custom-fit look
  • Integrated straps and ropes prevent the cover from flapping in the wind and damaging your 5th wheel
    • Weighted straps buckle underneath your 5th wheel to secure the cover
    • Cinch ropes at the front and rear of the cover remove any excess slack
  • Zippered panels on the rear and passenger's side give you easy access to the inside of your 5th wheel
  • Built-in vents reduce the interior buildup of mold and mildew
  • Ladder cap and rain gutter covers help keep the cover from tearing at those sharp points
  • Included storage bag let you stash the cover away at the start of the camping season


  • Application: 5th-wheel toy haulers that are 28' 1" - 31' long
  • Overall dimensions: 31' 6" long x 9' wide x 10' 6" tall
  • 3-Year warranty

Adco Olefin Installed

Summer is over, and you're worried about your fifth-wheel toy hauler getting dirty and damaged in storage during high winds, snow flurries, and spring thunderstorms. Whether you're storing your fifth wheel in the sunny south, rainy northwest, or snowy north, this heavy-duty cover is designed to protect your fifth wheel in any climate. When you keep your fifth wheel covered during the winter, you are less likely to need to wash and wax it at the start of the camping season. And if you want to trade your fifth wheel in for a newer model later down the road, this cover will help maintain that resale value.

The durable, high-density Olefin top panel won't crack or fade when exposed to harmful UV rays and won't let dirt and dust particles cake onto the surface of your fifth wheel. It also beads water when it rains to eliminate the black streaks and corrosion you tend to see on the sides and roof of your fifth wheel.

How to Measure Your Fifth-Wheel Toy Hauler

Adco How to Measure 5th Wheel Toy Hauler

To determine if this cover will work for you, measure the overall length of your fifth wheel from the very front to the rear bumper, making sure you're accounting for any spare tire carriers and ladders on the back. The cover isn't meant to fit over the kingpin of your fifth wheel, so don't include those in your measurements. Then measure the overall height from the bottom of the chassis to the top of your fifth wheel. Do not include any AC units, vents, or antennas in your height measurement, as the cover is already designed to accommodate them.

Securing the Cover onto Your Fifth-Wheel Toy Hauler

Adco Olefin Securing with Integrated Straps

The included ladder cap and rain gutter covers help prevent the cover from splitting on those areas of the fifth wheel, so install those first. Then unroll the cover and carefully spread it evenly around your fifth wheel, making sure you don't pull too hard and tear the fabric. Once the cover is in place, pull on the cinch ropes on the front and the rear until the cover fits snugly around the contours of your rig. These ropes remove any excess slack in the material, especially if your fifth wheel is slightly shorter in length. Then toss the weighted straps underneath your fifth wheel to the other side and buckle them together. These straps keep the cover secure on your fifth wheel, preventing it from flapping in the wind and damaging the paint job.

Adco Olefin Zippered Access Doors

And if you still need to winterize or if you need to access one of the cargo compartments, you can use the zippered panels on the passenger's side to easily access the interior of your fifth wheel without having to completely remove the cover. You can also unzip the entire panel on the back of the fifth wheel so you can load and unload gear into your fifth wheel.

36854 Adco Olefin HD Designer Series 5th Wheel Cover - Grey

Replaces Adco 290-34854

Customer Satisfaction Score:

Customer Reviews

Adco Olefin HD RV Cover for 5th Wheel Toy Haulers up to 31' Long - All Climate + Wind - Gray - AD99ZR

Average Customer Rating:  4.5 out of 5 stars   (440 Customer Reviews)

Throw this storage cover over your fifth-wheel toy hauler to protect it while you're storing it for the season. The contoured cover conforms to the shape of your fifth wheel and secures with the integrated straps so it won't flap in the wind.


Just installed our new cover which replaces an older ADCO cover. Installation was easy and it fits great with a little room to spare. We have a 30 ft Cougat 26rls. Material quality seems to have improved.



After one of the toughest winters on records here in northern Minnesota, the cover still looks like new. Was a great investment to protect our 5th wheel. Honestly,


It's a pne season cover. But it's a decent cover for that one season. Plan on throwing it away after that.


Quality cover that is holding up well after a year of service.


I just received this Adco Olefin HD All Climate 5th wheel cover and I’m giving it a 4 star rating in the hopes it’s significantly better than the Adco SFS waterShed cover I purchased 2 years ago which simply disintegrated as it covered the trailer.


This cover was a good news - bad news experience. Cover arrived promptly = good. Box substantially damaged and split = bad. Only items in remains of box were shrink wrapped cover and package containing gutter spout covers, looked like storage bag and throw weights had fallen out and were lost = apparent bad. Included gutter spout covers were in pictures but not in text description of item, so not expected = pleasant surprise. Began to be upset at apparent loss of storage bag and throw weights, since pictures showed them separate from the shrink wrapped cover = apparent bad. Opened shrink wrap and began to unroll new cover. When cover 2/3 of the way unrolled, there was storage bag and throw weights inside of bundle = good and bad: glad they were there but why the inaccurate picture on website, showing them outside shrink wrap, that caused initial disappointment? Cover went on our 30' fifth wheel with average effort for that size RV = neutral. Throw weights actually worked well = good. Cover appears well made with attention to detail in high stress places. Lots of small adjustment points to optimize fit. Looks durable but cannot say with certainty without the test of time.


Etrailer Expert

Jenny N.


If have any questions or concerns about the cover then I am happy to help.



I have a 2018 Lance 1995. This is the right size cover for this trailer. This is a good universal type cover ,but it is not a custom fit. This cover looks like it will work fine, but since the trailer has a curved from section it does not fit as well in the front as it does in the back. I have had to use bungee cords to help take up the slack and make a area for water to drain off the roof. I had to decide to either cover the propane tanks or the read bumper. I chose the tanks. If you get the next size up there will be too much cover and you will have issues dealing with the extra material. This cover is just long enough to reach the bottom of the siding with no extra material. It was arrived quickly from E Trailer. I suggest watching the installation video. It was helpful.


2 people installed the cover today in a light wind. I am a mechanical designer. I am not receiving any compensation for this review. This is our first cover going on our first RV. We ordered/received the the 22' long cover for the trailer which measures ~22' bumper to hitch ball plus some for the spare tire on the bumper. I am happy with the fit though it looks like it would fit a trailer whose "box" is about 3' longer and still go over the tanks and spare tire. I thought the ordering instructions said to include the tanks in the front and the bumper/spare tire in the back when determining the length.

There were no instructions except to "dull" sharp corners. The little foam tubes went on the gutter ends and I used black tape around sharp points on the bottom.

The only bad thing about the cover are the buckles/buckles: they worked but 1) they are too light duty, too weak, and the sections too thin in my opinion and 2) the design stinks because I want to hold the female end right where you press to release the buckle which was annoying but I figured out how to do it and it was more awkward than it needed to be considering other similar buckle types.

I got on the roof to pull the cover over from the side (not the front or back) over the ac, tv antenna, bathroom vent, etc and that worked well. It was too hard to pull the cover over the first top corner with me on a ladder and wife on the ground. If I could not get on the roof, we both would need to be on ladders. Or tie a rope to the straps and try to pull it over the top. Maybe try to pull it over from the front.

The fit is very good: good width, more than enough length and good height. I am glad the height was no taller so as to keep it from wrapping around the bottom which is sharp and the trim ends are sharp. We connected the underneath straps first, then the front and back then cinched the top and bottom corners to pull the whole thing tight along the perimeter.

All of the buckles are the same so I was able to repurpose some straps to wrap around the spare tire and bumper and connect to some other buckles for a better tie down arrangement. I would have liked a strap in the front middle to tie down under the tanks.

Otherwise, there are just the right number of straps underneath. I don't think more would help and less would make me nervous.

There are 2 flaps zipped on one side for a door at the front and/or the rear. I unzipped the front flap, sloppily rolled it up and attached the 3 velcro straps that hold the roll up. I had to undo 1 bottom strap from the flap so I need to rereview this after we have a good wind/rain storm but I think it will be ok. See pics. The trailer is parked in between a tree, shrubs, the house and the neighbors house so it is somewhat protected from some wind. Someone else may need to add a tie along the side bottom to take the place of the rolled up flap. When the flap is down, zipped, it is velcro'd at the bottom to the cover.

The perimeter cinch straps have a sleeve layered on top of the sleeve the strap is in which is great for 2 reasons. 1) you can stick your finger in it to grab it to push the cover back and pull out the strap, then 2) you can regrab it while pulling the strap through the buckle and keep the stress off the strap. This will keep the strap from scrapping and wearing while pulling through the buckle. I took pics and a video of this. And 3), this is another sleeve you can run a line through if needed.

Overall, I am very happy with this cover! It is reasonably thick material, aerated and the holes are covered with a flap to keep rain out, has a lot of straps which are well attached to the cover. The installation went better than expected at ~ 45 minutes and next time I expect to do it in half the time. The door access is a great feature. The cover went over the spare tire and the dual 20 lb tanks plus batteries in the front. One of the pics has the trailer model so you can see for yourself how well this cover fits this trailer. I expect this cover to last until a sharp corner some place tears a hole or the sun finally gets to it. The cover comes with a bag but I have not used it yet. And found a piece of velcro but not sure what for.

PS: Finally looked at the storage bag and found the instructions, self adhesive material to fix holes and weights that can be attached to the straps to throw underneath the vehicle (not over b/c the weight could break a window or make a dent) in a side pocket.


The quality and fit are very nice. For reference, my Outdoor RV measured 20'10" and additional 16" for the spare tire for total 22'2" Plenty of room to install. The roof fabric was ample for the AC unit. Also noted the cover is full grey material and the white top is added over the grey to make the roof double thick which is a nice bonus. Please note that the manufacturer's paperwork says this cover is NOT water proof.


I'll start out with the good. The cover fit excellent. The straps snugged up, the zipper access lined up perfectly and was generally easy to put on.
The bad is the cover has came apart in several spots, mostly corners and the satellite antenna area. None of these are sharp but for whatever reason it just rubbed right through. Cover was put on not quite a year ago and held up to the Minnesota winter seemingly fine but seasonal change wasn't kind too it.
I think the takeaway from this would be it would probably be good for 6 months or less but not beyond that.


Installed per video and first time worked out well. Video implied weighted straps for tossing under trailer and a storage bag were to be included, although neither were nor was that mentioned in description. Would have been nice, though if they had. It installed well and covered trailer as it should. Only time will tell how well it will hold up but I am pleased so far.


This review is for fit and installation. The fit is good. Just a little short. Installation is easy. Took about an hour. I will review again in the spring as to the condition of the cover and camper.


Absolutely love this cover. I am 62, and was able to put this cover on myself (even being afraid of heights)! The gutter guards are a great addition and will prevent snags and or rips. Taking it off- I’ll ask for help, so the corners don’t get snagged on the lower ends. Great product thus far. I called and spoke w Ms Paula when I first ordered this cover, bc my camper is not as wide as most, but it is 20’. Had extra length, so I covered the propane cover and my hitch.


After one year already is tearing quite a bit. I've only put it on/off about 6-7 times in the past year. Also interestingly, my solar panels are still able to get power even with cover on so undoubtedly it reduces the UV light quite a bit its not completely. Though I don't mind so much as it kinda trickle charges the batteries. This is being used on a 2022 Ember Overland 190MDB


The cover seemed HUGE while installing it! The ingenious number of buckles & straps allowed us to pull it up tight & even cover the propane tanks & hitch. Our trailer is not very tall, so the cover rolled under & we don’t expect it to balloon in the wind like the cheap used cover that came with our used Casita. The double seams look very durable.
The attached pics are to show how easy it was to protect against sharp corners & potential rub areas. (This is not a Folgers commercial, haha.) These pics (saved with bag & paperwork) will also remind us next Fall what we did!
There are 2 sharp metal pieces on the roof behind our awning—-we cut out the bottom of a red plastic can, sliced the side, & popped those over & used twine to avoid them slipping.
The square ends of the rear bumper got 2 more plastic cans (green).
The front hitch crank took a red coffee can & the very front is protected with a milk carton. The step needed some styrofoam scraps for the sharp corners.
The prairie pic just shows how small the trailer is, and the fully covered pic is not too helpful because the trailer is parked in a small fenced area.
If you need any further explanation don’t hesitate to contact us.
Thanks for a great product. Hope I say that again after a Montana winter!


I sent my friends the link for the instructional video and in true guy fashion they said it was so easy they didn’t even hafta watch it. My 3 guy friends put it on in 25 minutes. “Good product, I’d totally have one if I owned an RV”, “Everything we needed (straps/padding) was included.” It fit great over my Starcraft Autumn Ridge 245DS. While I wasn’t involved in the process, they all assure me it went smoothly.


Perfect. etrailer is far and away the best internet company I have ever dealt with. When looking for a cover for our camper, I was overwhelmed with the options found online. You don’t know what you’re looking at and prices are all over the place. Not to mention pretty much guessing if your getting the right size. etrailer had a drop down that let me pick the exact camper we had, and a description that helped me pick exactly the cover needed. The price was fair and it arrived pretty quick. Installation was easy after watching e trailers video. It fit perfectly and looks like it will last a few seasons at least. I have to say I am a satisfied customer and after 3 times of being amazed by etrailer, they will be my go to store for all things truck and trailer.


This cover looked great and actually stayed on and protected the trailer but completely fell apart after 7 months. The area that was exposed to the sun completely disintegrated. Adco honoured the 2 year warranty and sent me a new one. I think that it will do exactly the same as the first one. I keep my trailer in the Palm Springs area and summers get extremely hot c/w high winds.Bottom line it did protect my trailer.


I do really like the quality of this RV Cover. We just put it on for the second time. The material is very light and yet it stood up well to Colorado's pretty heavy snowfall. The storage bag was plenty large enough. I liked the very visible Front and Rear labels when getting it out of the bag. The hold down straps seem to do a great job.
Our trailer is a Lance with a very sloped front end so the cover is far from a perfect fit up front since it's designed for a more boxy shape


Overall, fits our 30' travel trailer nicely and seems to be similar quality as the one we purchased from this company 4 years ago except the gutter cover quality is improved. Our only complaint is one of the clips on the bottom corner was the wrong one, but we worked around it. See photo.


I wanted all season camper cover because I take care of everything I own, so I ordered this from etrailer which I think very highly of and recommend but this did not turn out the way I thought in a matter of one winter three months later, the holes or where outs started to appear it was like papier-mâché I’m not one to complain or share my problems. I got a hold of etrailer nine months later and talk to Nathan. He told me I need to get a hold of the company myself I hope for the best and don’t recommend.


Just put it on our Casita Freedom Deluxe and I am very satisfied so far. Think we will start putting it on from front to back as it got hung up on the Maxx Air Vent going from back to front. Everything was as advertise. Also may put over the Arksen Box and Stromberg stand the next time. The relatively sharp corners on the box and the Stromberg may cause wear at those points however. May rethink that idea. With the use of a 6'ladder and two lite 6 ft poles we got it done. Takes two people. The more times we do it the easier it will get. Well worth the investment IMO.


The cover appears to be a quality product. However, it is stated to be sized for up to a 34' motorhome. Mine is 33' long, and I'm sure the cover would fit a 35' easily. In other words, this cover is a bit loose in the length. It tightens up alright, with the straps, but a lot of gathering had to be done. I'm still happy with it; it will serve its purpose well.



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Do you have a question about this RV Cover?

Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Kathleen M
Updated by:
Kathleen M
Employee Wilson B
Updated by:
Wilson B
Employee Chris R
Video Edited:
Chris R
Employee Mary K
Written by:
Mary K
Employee Amanda M
Edited by:
Amanda M
Employee Adam E
Installed by:
Adam E

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