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Adco Spare Tire Cover for 21-1/2" Diameter Tires - Black - Qty 1

Adco Spare Tire Cover for 21-1/2" Diameter Tires - Black - Qty 1

Item # 290-1740
Our Price: $19.13
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Spare Tire Covers
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Shipping Weight: 0.92 lbs
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Adco Spare Tire Cover for 21-1/2" Diameter Tires - Black - Qty 1 Vinyl 290-1740
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Throw this black cover over your spare tire to protect it from the elements. Heavy-duty vinyl material protects the tire from dry rotting in the summer sun and prevents the wheel from corroding if exposed to road salt during the winter. Great Prices for the best spare tire covers from ADCO. Adco Spare Tire Cover for 21-1/2" Diameter Tires - Black - Qty 1 part number 290-1740 can be ordered online at or call 1-800-496-5010 for expert service.
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ADCO Spare Tire Covers - 290-1740

  • 29-3/4 Inch
  • Black
  • Vinyl
  • ADCO

Throw this black cover over your spare tire to protect it from the elements. Heavy-duty vinyl material protects the tire from dry rotting in the summer sun and prevents the wheel from corroding if exposed to road salt during the winter.


  • Cover shields the spare tire on your vehicle, RV, or trailer from the elements
    • Protects your tire from dry rot, premature sidewall cracking, and blowouts
    • Protects your wheel from corrosion and rock dings
  • Durable vinyl material in black
    • Soft interior lining won't scratch or dent your wheels
  • Vented bottom reduces the interior buildup of moisture, mold, and mildew
  • Quick and easy, slip-on design with a built-in elastic hem


  • Application: 21-1/2" diameter tires
  • Quantity: 1 cover
  • 3-Year warranty

Adco Black RV Spare Tire Cover

Worried about the spare tire on your travel trailer dry rotting in the sun? Or perhaps you're concerned about the wheel corroding from exposure to road salt during the winter? This durable vinyl cover shields your spare tire assembly from dust, dirt, and harsh UV rays. So whether you're storing your trailer for the off season, parking your RV for a long camping trip, or driving your vehicle to work every day, the spare on the back will be protected and ready for use if and when you need it. And by keeping your spare tire covered, it'll prevent the sidewall from prematurely cracking, which will extend the life of your tire.

Making Sure the Cover Will Fit Your Tire

Adco Black RV Spare Tire Cover

This spare tire cover is designed to fit 21-1/2" diameter assemblies with one of the following tire sizes:

  • 4.50 x 12
  • 5.30 x 12
  • 4.00 x 12
  • 4.80 x 12
  • 6.00 x 9
  • 6.90 x 9

Securing the Cover onto Your Spare Tire

Adco Black RV Spare Tire Cover Elastic

Before installation, it's recommended to lay the cover in the sun for a few minutes. This will let the material expand slightly, so it'll fit over your tire more easily. Then using the built-in elastic hem, slip the pliable cover around your spare tire for a snug fit. The hem prevents the cover from flying off your tire as you're driving down the highway, and the soft interior lining won't damage your wheel's paint job.

1740 Adco Vehicle and RV Spare Tire Cover - Fits 21-1/2" Diameter Tires - Black

Customer Satisfaction Score:

Customer Reviews

Adco Spare Tire Cover for 21-1/2" Diameter Tires - Black - Qty 1 - 290-1740

Average Customer Rating:  4.7 out of 5 stars   (936 Customer Reviews)

Throw this black cover over your spare tire to protect it from the elements. Heavy-duty vinyl material protects the tire from dry rotting in the summer sun and prevents the wheel from corroding if exposed to road salt during the winter.


The problem: How to transport kayaks with smaller vehicle as weight of cross & kayak racks plus kayaks was above vehicle roof weight limits. So I shopped for a "kayak" trailer.
The people at etrailer made the ordering process easy and successful to complete this project.
Great trailer, impressed with the size & strength of frame, and assembly went together as instructed.
Installed bunk boards and mounted Thule DockGrip for Kayaks.
This for me is an easier and safer way to transport kayaks.
Thank you etrailer...


I was very please with the spare tire carrier and cover. The quality is great and it shipped very quickly.


I completely blasted and restored my 4x8 folding trailer . I bought all the new items from etrailer and am very happy with all .


It fit my spare very well & it looks gr eat!


Product was exactly as advertised and fit my spare tire perfectly.


Tire and wheel covers are excellent! Thank you ?



still holding up well thanks again
FRED B - 02/09/2019


It's exactly what I was looking for! I'll be doing more shopping, Thank you.


Great wheel covering product. Trailer sits on a lot in N. Texas. Always exposed to the elements. After one year still looks new. Highly recommend these covers.

Most Excellent! Very happy w tire covers.
Captain M - 10/07/2020


etrailer did a great job advising what size cover to get for the tire size on my trailer. It fits perfectly. Well made too!


Received quickly and product works well. Good quality and fits perfectly.


The service was quick, the tire cover fits perfectly. I'm pleased with etrailer!


First time shopping at etrailer. Just received my ordered item. Very easy. You have a nice inventory of products. I will be back. Thank you.


This is a good product at a good price. It fits nice and snug and there's no chance it will come off accidentally. This is thicker material and better construction than the last cover I had, which was a different make entirely. This looks like it will weather well and last a long time.


Received tire cover in short period of time and was exactly what was shown in description.


Excellent my brothers very satisfied with the quality


It covers tire.
More pliable than some
other should last longer.
Easy to get on but fits tight when on.


Awesome has held up very well.


Good Quality No Issues


very nice i like it

Great - keeps rain and snow off.
Warren - 08/12/2019


Cover fits and works great. Highly recommended in order to protect your spare from harmful UV rays!


Quick service ,fits great,


Very good product fits well and no deterioration yet would purchase again.


Good product for the money. Fits well and good quality.


Very satisfied with this product : quality, fit, price and delivery. Have ordered from them before and will again.

Show More Reviews

See what our Experts say about this ADCO Spare Tire Covers

  • Recommended Spare Tire Cover for 205/65-10 Tire
    For your 205/65-10 tire that has an outer diameter of 20.5 inches, I recommend the Adco Spare Tire Cover - 21-1/2" Diameter # 290-1740. This will give you a slightly larger diameter to assist with the tire being wider. This is the best fit we have available for your tire and it has an elastic enclosure for a snug fit.
    view full answer...
  • Spare Tire Cover Recommendation for 5.30-12
    For a black spare tire cover for your trailer tire size of 5.30-12 the Adco Spare Tire Cover part # 290-1740 would be a really great option that is the correct size. The Adco covers like this have a great 3 year warranty, are made from a high quality vinyl, and are vented on the bottom to prevent water from building up.
    view full answer...
  • Recommended Tire Cover for 5.30-12 Size Tire with Bar From Carrier Extending Through Wheel
    The Adco Spare Tire Cover # 290-1740 that you referenced is a great fit for 5.30-12 size tires but I'm worried that it's too good of a fit, meaning there won't be a lot of slack available for the extra 1-1/2 inch width that the bracket from your carrier creates. Because of this your best option is going to be a slightly larger cover like the Adco # 290-1739, which is technically designed for tires that are up to 24 inches in diameter (your 5.30-12 tires has a diameter of around 21.9 inches)....
    view full answer...
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  • Thermoplastic Vs. Vinyl Spare Tire Covers
    The Adco Spare Tire Cover part # 290-8760 is indeed the correct size spare tire cover for your 5.30-12 tires. As you mentioned, it is constructed of a durable thermoplastic polymer. The reason for the thermoplastic as opposed to vinyl is because it is easier to print on than vinyl. It feels just like vinyl but is a bit smoother to the touch. I wouldn't really say one is glossier than the other. There shouldn't be an excessive noise with the cover. If you would like a black vinyl cover...
    view full answer...
  • Recommended Cover for 21-1/2 Inch Diameter Spare Tire
    If your tire has a 21-1/2 inch diameter I recommend the Adco Spare Tire Cover - Black # 290-1740. This particular cover is a perfect fit for this size tire and it features a double vinyl construction that will do a great job of protecting it while it's waiting to be used (but hopefully you won't ever have to!). Its elastic opening with a hollow-beat welt cord ensure a snug fit and an easy install. This cover is also available in White # 290-1760 and Diamond Plate # 290-9760. I have...
    view full answer...
  • Recommended Spare Tire Cover to Fit a 5.30-12 Trailer Tire
    I recommend the Adco 21-1/2 inch Tire Cover, part # 290-1760. Your 5.30-12 sized tire is about 21-1/2 to 22 inches in diameter so this is the correct size. The cover is also availabe in Black, part # 290-1740, Camouflage, part # 290-8760, and Diamond Plate, part # 290-9760.
    view full answer...
  • Recommended Spare Tire and Storage Covers for ST205/65-10 Trailer Tire
    A trailer tire of size ST205/65-10 has an overall diameter of 20-1/2-inches so you'll want a spare tire cover that will fit a 21-inch or larger size. The linked page displays all spare tire covers in an appropriate size, including Adco black cover # 290-1740, camo cover # 290-8760 and Camco white cover # CAM45349. Covers protect your valuable tires from premature aging from UV-rays and exposure to the elements. It is also a good idea to protect your mounted tires during storage periods...
    view full answer...
  • Spare Tire Cover for 145/R12 Trailer Tire in Black
    A ST145/R12 trailer tire like the Kenda Karrier # AM10130 measures 21.3" in diameter and 5.7" wide, and we do have spare tire covers which come in black that fit this size tire. What you need is one of the following spare tire covers: - Adco Spare Tire Cover # 290-1740 - Camco Vinyl Spare Tire Cover # CAM45261 I have added links to video reviews for you to check out as well.
    view full answer...
  • Spare Tire Cover for 20.4 Diameter x 8.4 Wide Kenda Tire
    Yes we do have a cover that will fit the 20.4" diameter x 8.4" wide Kenda Loadstar # AM3H454 you just got. The Adco Spare Tire Cover # 290-1740 is designed to fit 21-1/2" diameter tires but it has an elastic cord that will allow it to still fit over your tire and work as intended.
    view full answer...
  • Recommended Spare Tire and Carrier For CE Smith Multi Sport Boat and Kayak Trailer
    For the CE Smith Multi Sport Plus Boat and Kayak Trailer # CE48870 I recommend the Loadstar 4.80-12 Bias Trailer Tire with 12" Galvanized Wheel # AM30670. The galvanized wheel will match what comes on the trailer. The spare tire carrier will depend on how you would prefer to mount the spare. A CE Smith Spare Tire Carrier # CE22007Z-11050-2 will allow you to mount the tire horizontally on top of the trailer. This would work best near the a-frame of the trailer to support the tire. The...
    view full answer...

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    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
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Info for this part was:

Employee Tyler C
Edited by:
Tyler C
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Dustin K
Video Edited:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Hayden R
Installed by:
Hayden R
Employee Mary E
Updated by:
Mary E
Employee Wilson B
Updated by:
Wilson B
Employee Ronnie R
Written by:
Ronnie R

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