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Adco Tyvek All-Climate + Wind RV Cover for Class A Motorhome - Up to 37' Long - Gray

Adco Tyvek All-Climate + Wind RV Cover for Class A Motorhome - Up to 37' Long - Gray

Item # 290-34826
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Adco Class A RV Cover RV Covers - 290-34826
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DuPont Tyvek Class A RV cover works best for long-term storage in all climates. Heavy-duty, 3-layer fabric protects against rain, dirt, wind, and sun. Contoured fit matches shape of your RV. Secures with cinch rope and straps. Includes 4 Tyre Gards. Lowest Prices for the best rv covers from Adco. Adco Tyvek All-Climate + Wind RV Cover for Class A Motorhome - Up to 37' Long - Gray part number 290-34826 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (474)
  • Q & A (6)
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  • Why etrailer?

Adco RV Covers - 290-34826

  • Storage Covers
  • Class A RV Cover
  • Gray and White
  • 34 Feet Long
  • 35 Feet Long
  • 36 Feet Long
  • 37 Feet Long
  • Adco
  • Best UV/Dust/Weather Protection
  • All Climates

DuPont Tyvek Class A RV cover works best for long-term storage in all climates. Heavy-duty, 3-layer fabric protects against rain, dirt, wind, and sun. Contoured fit matches shape of your RV. Secures with cinch rope and straps. Includes 4 Tyre Gards.


  • Cover protects your Class A RV from rain, dirt, wind, and sun
    • Works best for long-term storage in all climates and high winds
    • Helps reduce the need for frequent washing, waxing, and exterior treatments
    • Prevents premature aging and helps maintain resale value
  • Contour-fit design conforms to the general shape of your RV
  • Top panel constructed of triple-layer DuPont Tyvek fabric
    • Blocks 99.8 percent of harmful UV rays that can cause cracking and fading
    • Reflects infrared heat to help keep RV interior cool
    • Prevents 98 percent of dirt and dust particles from reaching RV surface
    • Beads water on contact to prevent pooling
    • Eliminates black streaks and corrosion caused by air pollutants and rain
    • Includes polypropylene middle layer for added durability
    • Extends down the front, back, and sides of cover for extra protection
  • Side panels constructed of non-abrasive, triple-layer polypropylene
    • Breathes to eliminate moisture build-up, mold, and mildew
  • Zippered panels on passenger's side offer easy access to RV interior
  • Built-in vents allow air to escape in windy conditions to prevent damage to cover
  • Cinch ropes at front and rear of cover remove slack and reduce billowing
  • Weighted straps with buckles secure cover under vehicle
    • Prevent cover from blowing off in the wind
  • Reinforced, elastic corners ensure a snug fit, reduce wear, and resist tears and snags
  • Ladder cap and rain gutter covers help eliminate wear points
  • 4 Tyre Gards included to protect your wheels while RV is in storage
  • Storage bag included
  • Gray color with white Tyvek top and contemporary sidewall design


  • Application: Class A RVs 34'1" - 37' long
  • Dimensions: 444" long x 106" wide x 120" tall
  • 3-Year warranty

Adco How to Measure Class A RV

To determine the proper fit, measure the length (front bumper to rear bumper including spare tire or ladder, where applicable) and sidewall height (undercarriage to the top of the natural roof line). This cover is designed to accommodate rooftop accessories such as AC units and vents.

Choose Cover by Climate

Adco Climate Map

The climate where you are storing your RV will help determine which cover to choose. This Tyvek All-Climate + Wind cover is designed for use in all climates located on the map above.

Adco Class A Cover

This contour-fit cover helps keep your Class A RV dry and well protected when not in use. It features a 3-layer DuPont Tyvek top and 3-layer polypropylene sides to protect against sun, rain, mold, and mildew in all climates. Elastic corners and a rope cinching system allows you to draw the cover in tight over your vehicle. Zippered panels on passenger's side offer access to your RV during storage. Includes 4 Tyre Gards to protect your vehicle's wheels when stored.

Fabric Guards Against Elements

Adco Class A Tyvek Cover

The top panel is constructed of triple-layer DuPont Tyvek fabric that is stronger and more UV resistant when compared to standard polypropylene covers. It blocks 99.8 of damaging UV rays while keeping the interior cool through infrared heat reflection. It also prevents 98 percent of dirt and dust particles from reaching the RVs surface. Additionally, the fabric beads water to eliminate pooling and ice build-up that can damage your RV or cover. And the material resists acid rain, bird droppings, tree sap, dirt, dust, and other forms of environmental pollution that cause black streaks.

The sides of the cover are made of a non-abrasive, triple-layer polypropylene. This high-performance, non-woven fabric is water resistant and breathable to prevent the growth of mold and mildew.

Air Vents Help Cover Breathe

Adco Class A Air Vents

Air vents on the sides allow air to escape the cover in moderate winds to prevent billowing. These built-in vents also help the cover breathe to prevent mold and mildew.

Straps and Elastic Corners Ensure Snug Fit

Adco Corner and Cinching System

The cover is designed to fit snugly over your Class A RV for a clean look and better protection from the elements. Elasticized corners grip your vehicle tightly, and they are reinforced to reduce wear and prevent tears and snags. Cinch ropes in front and back remove slack and reduce billowing.

Adco Weighted Strap

Weighted straps with buckles run beneath your vehicle to secure the cover in place. The weighted ends allow you to easily toss the straps from one side of the vehicle to the other. Once buckled, the straps can be pulled tight to ensure the cover is securely fastened so it won't blow away with the wind.

Zippered Panels Offer Access

Adco Tyvek Side Panels

The cover features zippered panels on the passenger's side to allow access to the interior of your vehicle while the cover is installed.

Storage and Protection

Adco Class C accessories

A ladder cap, rain gutter spout protectors, 4 Tyre Gards, and a storage bag are included with the cover. Place the cap on top of your vehicle's ladder and the protectors over your rain gutter spouts to reduce wear on the cover. The Tyre Gards protect your wheels while RV is in storage. The bag allows you to store the cover compactly in your vehicle or garage when not in use.

34826 Adco DuPont Tyvek Plus Wind Designer Series Cover for Class A RV - 34'1" - 37' long

Customer Reviews

Adco Tyvek All-Climate + Wind RV Cover for Class A Motorhome - Up to 37' Long - Gray - 290-34826

Average Customer Rating:  4.3 out of 5 stars   (471 Customer Reviews)

DuPont Tyvek Class A RV cover works best for long-term storage in all climates. Heavy-duty, 3-layer fabric protects against rain, dirt, wind, and sun. Contoured fit matches shape of your RV. Secures with cinch rope and straps. Includes 4 Tyre Gards.

- 290-34826

Our experience with eTrailer was great! We had never done business with them before and found them on the internet while trying to find a new RV cover for our motor-home. Although they were not the first company listed in a "Google" search, they were the most competitive, and their service was amazing! Our order was acknowledged almost immediately, the cover was shipped out within a few hours (freight free), and it arrived right on time a few days later. The next time we need anything for our RV, there's absolutely no doubt we'll contact eTrailer again! 564028

Much better than expected! The Adco RV cover is much better than our last one....stronger, easier to use, and better in many ways. Theyve done a good job of improving what had been a good product...and making it even better!
Bruce S - 09/13/2019


- 290-34826

Well engineered product with lots of extras built in, such as a large zippered entry door, accommodations for the ladder and roof air conditioners, and plenty of straps for cinching the cover down tightly for high winds. Really nice multi-layered fabric. Should protect or RV through Ohio's winters. 868059

- 290-34826

Holding up pretty good. Have a couple of small holes where the cover goes over the slide out toppers. My previous cover was identical to this one and it lasted 3 years. The motorhome is in Florida and subject to the sun and tropical t-storms. Not sure any cover would do better. The tyvek roof is a big plus. Would recommend 782493

- 290-34826

I used this cover last winter for 4.5-5 months. The zippers sides allowed me to easily check the dry pots and heater inside. When I took the cover off there was a lot of standing water on the roof due to pockets created by the various things on the roof. The RV was clean and dry under the cover though. I could not find and wind buffing marks that tarps leave. There was no visible damage to the cover. Very happy with the preformance of this cover. 720696

- 290-34826

I had to order a 37 ft. size for my 34 ft. Tiffin Motor coach. I wound up gathering the excess footage on one end and tucking and rolling into the aft end of the coach. The cover was on for 3-4 months. It saw heavy snow, rain and ultra low temps and high wind. The only issue was a rain gutter at the front end punctured the cover. I have used one of the cover patches to repair from the inside. From a distances you cannot see the repair. The cover is nice, it did not scuff the paint and I was able to put the cover on by myself. A word of advice... take your time and verify the cover is on equally from side to side. We love the zipper access!!!! I would rate this product good to excellent. 719727

- 290-34826

Bought this cover in 2018 and started using it in the spring of 2019 for the first time. In total it's been used about 4 months and the material is tearing along a seam due to the fabric weakening from what I think is sun exposure. Just looking at it almost will make it tear further. I wished I would have started using it sooner so I could know how bad this product was and I would then still have some type of warranty. 674092

- 290-34826

Exactly what I hoped for. 655483

- 290-34826

Product is Ok at best. After 3 months there was a defect in the zippered areas where the threads just came off. I think their stitching the seams too close together making the material almost like a perforation. So tears easily. Top Tyvek works great. I've already replaced entire unit, and expect to do repairs on material frequently. My suggestion is upgrade to the full tyvek or canvas versions. Pay the larger bucks, but will be worth it in the long run. 642989

- 290-34826

Got my cover a day early, just before storms were due to come in. Unboxed and inventoried parts. Everything came as ordered. I read the instructions and watched a few videos on line. Had the cover installed completely in less than an hour. Had to figure out how to install the rain gutter and ladder cap on my own as there were no instructions included. Another great experience with etrailer.com. 639367

Good product, roofing layer needs to be beefed up. Got a few years around ac units after a 6 inch snow fall. Patched those areas with heavier canvas.
Leo - 05/08/2020


- 290-34826

Like the cover and the convenience of access panel for the ability to get into the motor-home while the cover is on. However, it's made with very thin material and ripped a small hole in the top of the cover when it hooked on A/C unit during installation. We have a 34'3" motor-home and went with the 36 ft size as the manufacture recommends going to larger cover when size is close, but there is too much excess cover hanging off the back which flaps in the wind, even with the straps pulled to there limits. Would go with the smaller cover next time. 625537

- 290-34826

Great cover...worth every penny to protect our motorhome. 603064

- 290-34826

The cover was installed on the same day received. First impression was the quality of the materials used and workmanship. It fits very well for a generic cover (vs. a custom made one). Excellent product for the price point. 578635

- 290-34813

Review from a similar All-Climate Plus Wind in RV Covers

Very smooth transaction, from placing the order to receiving. Thank you 645023

- 290-34857

Review from a similar All-Climate Plus Wind in RV Covers

This cover arrived on time and I look forward to putting to the real test in a week or so when I install it. Thanks for your help, and the price was awesome. 724454

- 290-34854

Review from a similar All-Climate Plus Wind in RV Covers

I received it when I was told it would be delivered have not had chance to use it yet 453445

- 290-34846

Review from a similar All-Climate Plus Wind in RV Covers

Received all packages in good shape. Due to weather right now. Will open and install when weather breaks. Thank you so much. We will be shopping with you in the near future. 725733

- 290-34815

Review from a similar All-Climate Plus Wind in RV Covers

Shipping was super fast. Thanks everyone who had apart in helping me out with questions (Bryan). The box is big and I hope to install the cover as soon as the snow melts here in Minnesota. I've bought a few of this brand of cover before. They hold up for a few years if you keep them on tight and snugged down from the wind. Padded at the sharp corners. Thanks Dino 611241

The cover is working great. I dont expect it to last forever. The sun can destroy anything. Good price for the cover. Use extraa pull ties and bungees
Dino L - 04/14/2020


- 290-34855

Review from a similar All-Climate Plus Wind in RV Covers

Cover seems to be made from durable material and straps make for a good fit. 5 stars for Etrailer customer service and MeghanL. 579001

- 290-34857

Review from a similar All-Climate Plus Wind in RV Covers

Great product, knowledgeable/very helpful customer service. However, wrong product was shipped resulting us a delay with our move departure date, for waiting on delivery of right product. Very frustrating. 546991

- 290-34854

Review from a similar All-Climate Plus Wind in RV Covers


- 290-34844

Review from a similar All-Climate Plus Wind in RV Covers

Good product 573179

- 290-34844

Review from a similar All-Climate Plus Wind in RV Covers

After one year of heavy snow, wind, rain, summer heat and sunshine, cover has no tears, is waterproof and is really as good as new. Excellent buy, great price. Would recommend to anyone wanting a well made cover. Wheel covers, which are included, are a real bonus. 713842

- 290-34844

Review from a similar All-Climate Plus Wind in RV Covers

Just got the new cover. Really happy with speedy delivery. 723033

- 290-34843

Review from a similar All-Climate Plus Wind in RV Covers

The side zippers don't go up far enough to allow doors to open. I'm hoping this one lasts longer than the previous one that rotted in 18 months. 725255

- 290-34873

Review from a similar All-Climate Plus Wind in RV Covers

Ordered the 24-28 cover and it was pretty loose on my trailer because I am just under 25'. The straps seem to have taken up the slack pretty well. The air conditioner cover was about 1/2 the size of my unit so that didn't work. Hoping it will last a few years it looks really nice. I was however very disappointed in the packaging (not the cover manufacturer's fault). I ordered a small door latch at the same time and etrailer.com decided instead of sending it separate they would open up the cover box, throw it in and re stable the box. What they didn't realize is that 4 good sized cardboard staples pierced right through the box into the cover. The damage was minor so I didn't bother sending it back. I was shocked and disappointed when I opened the box. I hope the small punctures don't turn into huge holes in the weather. 595581

Show More Reviews

Ask the Experts about this Adco RV Covers

  • What Adco Cover for the 2019 Jayco Precept 34G and What is the Warranty on Adco Covers
    You're correct; since the 2019 Jayco Precept 34G is just over 36 feet long, the Adco Tyvek # 290-34826 is the correct fit and the best cover for your coach to protect from the elements. Adco products have a 3 year warranty and I really like that these covers come with tire guards included, since protecting your tires from UV rays is a great way to extend the life of your tires.
    view full answer...
  • Will Adco Cover 290-34826 Fit 37 Foot Long RV with Non-Folding Mirrors 2017 Coachman Mirada 35bh
    The Adco Cover part # 290-34826 that you referenced will fit and work well for you. This is designed for 37 foot long RVs like yours and if you check out the picture you can see that the mirrors of the RV the cover is installed on are not folded in either.
    view full answer...
  • Storage Cover for a 36 Foot 1994 Holiday Rambler Imperial
    The available RV covers will fit your 1994 Holiday Rambler Imperial but they won't be an exact fit. Going with a 37 foot long cover such as # 290-34826 will work, despite being wider, and some of the slack will compensate for the ladder and AC units. With the cover properly secured it will do a good job of protecting the RV.
    view full answer...
  • Recommended Cover for a Newmar Baystar 3626
    The Adco Tyvek All-Climate + Wind RV Cover for Class A Motorhomes part # 290-34826 would be the perfect option for a 37' motorhome. The fit will be tight therefore you won't have a bunch of loose material for the wind to catch and potentially tear. That said, due to the tighter fit it will be a bit more challenging to get on but the tight fit is well worth this. If you want something easier to install and don't mind the extra material then go with part # 290-34827.
    view full answer...
  • Which Motorhome Cover Will Fit Nexus Mayback Class A Best
    The best fitting Adco Tyvek for your Nexus Mayback that measures 32 and 33 feet would be the part # 290-34825 which fits RVs up to 34 feet. The part # 290-34826 is the next size larger and might fit but would be larger than ideal. The TyVek provides the best protection for all climates and installs the easiest.
    view full answer...
  • Recommended RV Cover for Class A RV with AC Units and Antennas
    According to my research your 2001 Fleetwood Bounder 33R measures at 34 feet long. To be sure measure from the most rear location to the most forward location including the bumpers, ladder, and anything else that may extend its length. Also measure the sidewall height from the bottom of th wall to roof line. Do not measure the AC units or the satellite antenna. If your motorhome is 34 feet long, or little less, then I recommend the Adco cover # 290-34825. It's made for Class A motorhomes...
    view full answer...

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Info for this part was:

Edited by:
Tyler C
Expert Research:
Jameson C
Video Edited:
Dustin K
Installed by:
Hayden R
Updated by:
Mary E
Updated by:
Erin H
Written by:
Ronnie R

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